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JPH08504963

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DESCRIPTION JPH08504963
[0001]
In particular, the polarization method of sound field [Technical field] This method is biased to the
sound field, with the aim of maximizing the extremely wide area, non-local and spatial stereo
effects, with almost no need for space. It relates to the wave generation method. The excitation of
a progressive wave front (e.g. an impulse) acts along the longitudinal limit of the excitation
system, with a velocity vector towards the ideally orthogonal coplanar wavefront, a so-called
"plane wave". Polarization dipoles are generated (in each axis) for the side poles and the systemspecific operating time. [Background Art] 1. Technical Status 1.1. Sounds Adapted to Hearing a)
In DYMMY HEAD's Dummy Head Stereo Sound, instead of any large audience, the recording side
is placed in the concert hall and the signals are mostly delivered to the audience by the
headphone. b) The head phone produces directional sound of about 180 ° (right-left, quasiaxial) and thereby a realistic stereo sensation. The axis of the reproduction system is parallel to
the auditory axis (hearing adaptation). The crucial disadvantage is that the headphone can only
reach one person in one system. 1.2. General-purpose speaker arrangements, stereo
triangles, problems a) Speakers (regeneration transducers) may reduce the efficiency of free
diffusion due to so-called acoustic shorts (the sound pressure on the front mutes and travels
backwards in the reverse direction) Are mounted in a closed cabinet or on an acoustic bulkhead.
The partition resonates around and reflects the sound wave. Cabinet resonance has an acoustic
amplification effect, particularly in the low frequency range (low temperature echo). This is used
to level the frequency path of the transducer. Echo sound, cabinet type and materials affect
reproduction accuracy. b) Usually two loudspeakers are arranged and form their own sound field
completely independently of each other. The intensity of the sound waves emanating from each
(theoretically approximated point) acoustic transducer then decays according to the square of the
distance. Therefore, transmitting stereo sensations to the majority of the audience with speakers
(including electronic methods) has traditionally been problematic. Only a few centimeters offset
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from the center line, the position of the stereo image shifts significantly. Moreover, in multidirectional systems, which are owned by the majority, there is no increase in phase synchrony, as
the operating time varies. c) Because the intensity decreases with the operating time (following
the square of the distance), the stereo effect outside the center line is significantly attenuated.
Thus, in a normal stereo arrangement, good stereo sensitivity is shown only on the center line
between the two speakers.
It is advantageous to position in the triangle on the same side. The intensity difference occupies a
very good position as a potential sound source. At the same time, this control is difficult. An
integrated system is desirable for transmitting position-independent stereo sensations. 1.3.
Integrally-structured loudspeaker arrangements are known, which include acoustic parts related
to the echo of the box utilizing the known integrated stereo-speaker arrangement sidewalls. a)
Before the market introduction of stereo sound systems, speakers were already installed beside
the radio receiver. For example, a 3D connection due to the polarity exchange of the transducer
produced a stereo sensation. b) According to 1959, LEVI, Sidney et al. in the Journal of the
Acoustical Society of America (Audience's response to stereophonic sound reproduction by
echoes: 1256-1259), the audience emits a speaker that emits in the opposite direction to the side
The integrated built-in stereo system was evaluated as being far better in space and overall better
than the box separation type. In order to increase the effect, panels parallel to the axis, in
particular unconditional (hard) side wall echoes were used. c) Integrally assembled stereo
systems similar to simple acoustic bulkheads or U.S. Pat. Nos. 4,837,826 (stereo semiconductors)
and internally separated flexible tubes (U.S. Pat. It exists with a wide range of citations and works
in principle with the main echo components (assembly walls, separating disks etc). Disclosure of
the Invention Known elements for the solution 2.1. Known Principles a) As is known, the corners
also form a "singular" sound field in connection with disturbances. The type of variation of the
acoustic waveform to be dissipated can be identified by timbre (upper wave) as is well known.
Sound waves "flow" in the atmosphere at a velocity of approximately c = 340 m / sec. Therefore,
the problem of mass inertia with respect to partial sound waves is additionally inferred at such
corners. b) Sound waves consist of progressive (= continuous) sound waves and retrograde (=
backflow) echo sound waves. Each part of the same intensity (amplitude) becomes a "stationary
wave". The axial (reciprocal) echoes "resonate" and at the same time produce circulating
(rotating) sound waves around. Reference: Fig. 2aP = Direction of sound travel c) On the
recording side, disturbances in the space can already be minimized by means of small recording
transducers. The microphone case is realistic, as it is point-like, with little influence on the sound
range and a short size compared to the relay wavelength. If you give up a large cabinet or
segregant, the sound field image will not be a source of echo or diffraction related changes, nor
will there be a tangible separation between the left and right frequency bands.
However, according to the recording engineer's testimony, the small diameter diaphragm and the
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microphone itself with spherical characteristics of 1 kHz or more often show an increase in
pointing effect. Tube directional microphones are known. This is valid for the fact that the sound
waves concentrate through the tube and point internally in the longitudinal direction. Thus, the
cylinder (body or tube) generally promotes sound propagation along the linear coordinate axes of
the cylindrical coordinate system. d) On the reproduction side, it is meaningless to consider a
"point antenna". The sound pressure of the approximate point-like system alone (compared to the
shortest wavelength) can not be sufficient as is well known. Acousticologists assume this to be
the need for spherical sound propagation separate from the reconstructed sound source. The
eigenfunctions in the associated propagation space are the wave equations in the spherical
coordinate system. Reference: Fig. 1a-The loudspeaker produces extreme disturbances to the
sound waves in space, the magnitude of which reaches many times the number of recording
transducers. For the same reason, the pointing effect is also obviously remarkable. Built-in
cabinets, acoustic partitions, etc. are still large. -They prevent acoustic shorts and improve the
frequency path, but all partitions always form a reverberation arrangement (eg, a bass echo box),
and usually the corners disturb the sound flow ( Eg refraction). The wave equation of a
rectangular box is effectively described in Cartesian coordinate system (eigenfunction). -The
sound flow is ideally as unobtrusive as possible (with less echo and diffraction) from one
(internal, eg Cartesian space) coordinate system, to the other (external, spherical space)
coordinate system You should migrate. It is difficult to do geometrically (corners, ridges, side
walls and back walls) with already normal boxes. The object of the present invention is to reduce
the transfer disturbance of the sound flow (energy flow) traveling through the regeneration
space. 2.2. Beginning of the solution a) The sound field image of the (pulsed) sound waves
propagating intensively in the spherical coordinate system forms two spherical shells for two
consecutive time points. The tangential component is offset on each spherical shell. Thus only
radial components are present. Any conical section (= trumpet) between the two spherical shells
is transferred to the tube (cylindrical coordinate system) with a very large radius. The end face
can in each case be realized as a flat diaphragm with little disturbance to the sound field and
vibrate in the same direction (in the same way) with varying operating times. Sound waves
moving along a cylindrical coordinate system form a so-called "upper traveling wave". Reference:
FIGS. 1a, b spherical and cylindrical coordinates b) Subsequently, the transition from one
coordinate system to the other proceeds. Since the transition results in (ideally) non-reflection,
the system is "wave-blocked" by the size of the sound wave.
However, in the cylindrical coordinate system, the point antenna is no longer required. Within
the tube, the acoustic antenna excites an essentially flat (coplanar, especially cylindrical)
eigenfunction. In particular for the excitation of co-planar sound waves, an acoustic antenna with
an end and flat diaphragm is suitable. The acoustic waves circulating around the tube (tubes
resounding, circumferential resonance) can be suppressed, for example, by means of a
circumferential laminate structure, in particular with a dampened (and partly air-permeable)
interlayer. In particular, the longitudinally bundled fibers (globules) or the inner (transmissible,
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fragmented) structure of the tubules prevent the amplification of each individual resonance.
Reference: FIGS. 1b, c; 2b-fc) As is known, the curved transition is considered as (infinitely small)
continuation of hypothetical rectangular impulses (+/−), each offset in time. Therefore,
considering the action of a single impulse is in principle sufficient. First, since energy impulses
act on the directivity of the diaphragm in one (thin-walled) tube, sound waves propagate inside
and outside the tube at the speed of sound in the atmosphere. With the excitation of the initial
diaphragm, the progressive sound wave moves up and down. The two diaphragms at the end
move in the same direction at different times. The energy (sound waves) arriving according to the
operating time at the other end of the tube propagates more widely in space due to atmospheric
motion in the radial direction of the tube (or the motion of the two diaphragms). Interference
(echo, refraction) is minimized during propagation. At that time, the part that can be heard
behind is small as is well known. This relationship is significant for the realization of two
unrelated stereo signal parts. Reference: FIG. 1a Radial directivity d) The directivity of the
diaphragm produced by the force (action) is a direct reaction (action = reaction) in the
longitudinal direction of the tube, and thereby also eg in ultra-high impulse velocities or in solid
materials Corresponding to the speed of sound, the opposing diaphragms react (almost) without
delay. e) In the sound field of frequency, it is difficult to understand the concrete explanation of
the relationship. The operating time group and the strong damping reveal high frequency parts
and convert the impulse progression into a constant operating time or length. However, this
error can be compensated by the active circuit (special frequency path compensation and
actuation time slide), and it will delay the behavior of the system relative to the outside space. f)
The spatial nature of the acoustic disturbance acts particularly strongly and persistently to the
audience. It is known that the overwhelming spatiality by recording using a limit surface
microphone. There are several comparables on the reproduction side, but, for example, the
progressive sound waves emitted radially from the cylindrical arrangement (tubes) generate
progressive progressive surface tension waves due to the positioning along the wall.
2.3. Results The above-mentioned facts aim at achieving extreme spatial stereo effects with
minimal cost, and are effective for selective and comprehensive reproduction-side sound
reproduction compatible with the invention. a) Placing two tubular acoustic transducers, two
independent signals flow through each tube. According to the superposition principle, this is also
valid for excitation only at two positions of one tube. Already this simple arrangement is
surprising along the surface (wall), in particular in suppressing stereo signals (opposite pole, =
polar exchange frequency band) and tube resonances (tube echoes) radiated in the same way. It
creates space. As for the results of the improved system, the recording supervisor and recording
engineer said "very good flow", "incredible", "sane" (extremely frequent), "the whole space is full
of music" expressing. Moreover, the effect can be demonstrated even if the general purpose
stereo system in the adjacent space no longer has any kind of action. b) All the behavior of this
system is similar to a tube (body) with an oscillating end that oscillates in appearance (densely).
Each frequency component selects that portion between the end faces of the system, and enters
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the outer space in the phase direction. The solids (in particular the tubes) with the desired
properties have a circular, oval or polygonal cross section. The approximate solution can also be
obtained from other rotationally symmetric developments (eg, cones, ellipsoids, hyperboloids). Reference: Fig. 2ac) At first (basic) basic spherical progressive sound waves are transformed from
the cabinet structure including the set openings into a coordinate system (eigenfunction). A lowimpact longitudinal system with an opening at the end deforms the traveling sphere
longitudinally. Even in the case of relatively coarse deviations from the ideal and the non-ideal
structure, the effect is still clearly audible since the hearing is an extremely sensitive sensory
organ. d) Secondary effects, in particular echoes and resonances, may remain without hope for
the time being. Such a disorder is secondary and incompatible with the scheme, as it should in
principle only generate progressive primary sound waves (sound wave advance parts). However,
within the scope of the invention, the realization of the ideal can hardly be heard. At that time, it
is possible that the echo and resonance energy seriously disturb or completely destroy the
present effect (in particular, the strongly propagated stereo tone regardless of the direction) in at
least the middle-high range related to the position. Not acceptable. In this case, in particular,
resonances in the low frequency range which are not related to position are acceptable. e)
Because the coating or positioning at the back, top or bottom of the main body has an improving
effect, it may be possible to form a modified cabinet in terms of coating or type.
2.4. Terminology a) Name the same parameter in each spatial direction as a scalar (SKALAR)
and denote concentric (basic) spheres with homogeneous properties throughout. For example,
crystals do not meet this condition. Parameters (structure, propagation) adapted to only certain
dimensions are described as a vector (VEKTOR). Three (orthogonality) vectors form a tensor
(TENSOR) with different parameters in each direction. b) In the case of a known acoustical short
circuit (AKUSTISCHEN KURZ SCHLUSS), the pressure wave (wide range) generated in front of the
loudspeaker diaphragm cancels the traction wave (negative pressure wave) generated behind it.
This is because the superposition of the pressure wave and the traction wave makes it possible to
feel as if muffling of the sound pressure generated on the front side through the back side
occurred simultaneously (for example, in terms of hearing). If the length of action line is not
sufficient, each dipole will always result in a "zero" effect. Operating time prevents this. However,
since the activation time is generated by the diaphragm or disk, this converts the waveform into
echoes and resonances, where the sharp edges of the wall form a substantial singularity. Since
any distance that adapts to the actuation time pulls each of the (acoustic) shorts individually, the
septum may take the form of, for example, a wrapper or a tube. c) Polarization (POLARISATION)
basically does not mean concentric (spherical). This refers to a property of matter or sound wave
with a preferred orientation, in particular polarized along a straight line with the pole at the end.
The preferred orientation of the progressive progressive plane wave is a directional finite line
segment (vector). This is the form of a single (or several) operating time constant line segment
with poles at the end (at least from the diaphragm to the beginning of the tube) the form of a
definite limit surface of a practically finite (cylindrical) system Form. If the equal and opposite
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direction sound sources merge (segment = 0, pole short circuit), the result is zero. First, a finite
line of action (a sufficiently large straight line) allows the existence of dipole moment forms. The
tube length L produces such a dipole as a polarization line segment of an acoustic polarization
dipole. For example, as in the case of second-order echo sound waves, primary polarization is
referred to as polarization as the main and clear azimuthal characteristic of waves in the reverse
direction to the characteristic obtained in a second order. Similar to electrical dipole fields, such
fields in the whole space have left-right characteristics. Avoidance of energy storage (capacity,
resonance) suppresses echoes. -Reference: Fig. 2a Vector P, Length Ld) With the selection of the
tubular ring, the radiation impulses run around on both sides of the ring as pressure and traction
waves.
When the tube no longer closes, the impulse at the end of the tube propagates into the open air.
When the energy travels in the opposite direction to the (reaction) energy in the interior space,
the sound waves convert into actuation time and reach the other end of the diaphragm again.
Similarity: "Polarized" field, closed around. e) The impulse (= frequency group) activated in the
upright tube or on the tube lasts up to the tube end (pole, line segment) without an acoustic short
circuit, based on the activation time of the sound wave. The acoustic front forms a parallel and
flat (coplanar) surface (a complement of progressive line segments) inside the upright tube. f)
The preferred orientation of such polarized sound is referred to as progressive sound. When it is
polarized as it is adapted to hearing (hearing aptitude), it becomes a sound direction that adapts
to hearing or is easily adapted. In particular, the vertical reproduction of actual horizontal
acoustic energy does not adapt to hearing. The availability of the auditory adaptive system then
depends on the relationship to the frequency with respect to position. The utility of the principle
in bass reproduction (EP-0263748) and vertical arrangement also can not present the effect to fit
the invention. g) Two such tubes with one (end) transducer form this stereo configuration.
Instead, if two transducers separated from each other independently of the tube are attached to
the stereo signal, the system will always polarize and leave each transducer, creating an almost
echo-free progressive stereo sound field. The two transducers located by the side, for example,
direct the (upright) tube in the direction of the hearing (of hearing aptitude) as a line with little
resonance or echo. The spacing of the transducers defines the signal activation time T, resulting
in the form of dipole moment. (See above, see: mechanical coupling of jack, dipole of electrical
engineering)-see: Fig. 2a: operating time T (L) h) The space is voluntarily enlarged. The simple
stereo arrangement itself already reproduces the effect. The entire system can then produce
several fold phase rotation. The actual transducer does not operate without reaction as an FM
system and causes a dampened "soft" echo when the system named reaction is shut down. The
backward traveling sound portion can not be reciprocated several times between the poles of the
dipole, in which case the echo portion already present in the source signal acts. Moreover, it is
almost impossible for the tube which has dampened the resonance to generate an undesirable
echo widely. Acoustic images of very simple implementations are almost unacceptable because of
defects. This should be compensated (passively or actively). [Example] 3. Simplest integrated
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model a) The parallel sound field adapted to the invention is generated only by the stereo dipole
of polarized waves.
The simplest type of non-disruptive broken longitudinal connection is formed by a cylindrical
body (for example, a circular metal or plastic tube, see: FIG. 2 a “AC for acoustic conductor”).
Therefore, a pair of transducers are arranged coaxially (FIG. 2a: W1 and W2). The wave form on
the same plane is excited by the end of the tube at the end of the “up and down” parallel plane
(the diaphragm can be either the same plane or multiple planes) and the acoustic transducer acts
on the Act on the end face (or inside). -See: Fig. 2a: W1, W2, ACb) for example a bundle of layers
(tapered), fibers or small tubes, with a laminated structure around which is laminated inside
(Corrugated paper expanded thereon, eg narrow inside and wide outside Of the tube resonance
(tube echo) is advantageous. Mounting in the same way (at the opposite pole) develops a "very
wide space". In particular, bipolar (dummy head) recording is suitable for the implementation of
the effect. -Reference: Fig. 2b-g Focusing, Fig. 1c Unfolded Corrugated Paper Type c) Polarity
exchange (artificial agreement) of the transducer leads constantly to a marked spatiality. The
help of the wall echo is unnecessary. Since the recording technology was completely irrelevant to
the reproduction process, the general purpose of the stereo recording improvement effect by the
polarity becomes apparent for the first time. d) In the first model, a 2 mm thick plastic tube with
a wall thickness of 2 mm in thickness is used to attach a pair of (conical) broadband speakers
with an inside diameter of 10 cm and a length of about 1 m. The septum does not promote echo,
pressure and transverse components. Therefore the audible effect was already good. e) For
strongly attenuated bass reproduction, a short and thin metal tube about 33 cm long has already
shown an effect. In this case, for example, a temper-rolled aluminum thin plate having a thickness
of 0.25 mm is developed, and the inside is damped only by the padding. The same system's
(opposite) "up and down" broadband speakers at the end have already developed a wide spatial
spatial effect. f) In the case of a large diameter, the tube rotates from three overlapping parts
(with the middle layer). The use of internal connecting conduits (round bundle, fibers, small tubes
of different lengths) improves the effect. The loudspeaker diaphragm on the same plane
improves high reproduction (phase). g) The arrangement is parallel to the wall, for example
hidden behind a television receiver located approximately in the center. When diffused to the
sides, the side walls of the space echo appropriately. Side damping, for example needle felts or
curtains, have an improvement. Even outdoors, the front wall without side echoes on the ground
has an obvious effect.
4. Achieving acoustic effects a) Distributed in all rooms, a pronounced three-dimensional and
clear stereo effect is constantly promised. The system creates a phase effect in the reproduction
space and simulates a very broad dominant position of potential sound sources (musical
instruments, sounds) to the side walls. The preferred orientation of the sound axis is enhanced by
the walls and ceiling of the back room or by a mount (bookshelf surface), which can be explained
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by the sound collection effect of the wall echoing system. The enhancement of the steric effects
by walls parallel to the system can also be explained by the development of boundary waves (see
(2D) interface microphones) along with the overestimation of the effects at the edge of the
circular space. At the top and bottom of the cabinet, the top of the bottom and the front of the
back wall, in a larger hole, a small system can act on high volumes (up to 2 x 4 liter, sometimes
the same polarity). The action is similar to the transmission of the tuning fork's sound in the
resonance plate. b) A self-acting axis-extended system apparently acts outward enough to adjust
the alignment and exhibits a pronounced horizontal effect. The vibrational axis of the generated
sound wave detected in the direction of the hearing has a very broad and clear stereo base, with
the height being hardly lost, surprisingly. When the diaphragm vibrates in the opposite direction
(same polarity), the width of the stereo tone narrows, which is most advantageous for bass
reproduction. Thus, the effects of many recordings are also obvious. c) It is surprising that the
height with respect to the whole space improves the audibility most as a forward dissipating
system. If the surveyed person or a part of the recording supervisor engaged in it is within the
angular range of 90 ° just before the secrecy arrangement of the interval of 1-4 m, Lack has
produced negative effects. The system will place two dummy boxes in the corners of the room if
the sound direction polarity is incorrect. The audience moves into the room, partially open to the
adjacent room without loss of effect. In the case of the comparison box, this is never proved.
Regarding 5.3D theory 5.1. Gauss's Integral Law According to Gauss's Integral Law, the volume
integral of the source field gives the sound intensity in the volume, which is equal to the envelope
integral of its flow vector. The difference between the energy in and out of the volume surface
corresponds to the energy held in the volume. Document # 1: E.I. A. Guillem 1966, pp. 237 or
less. Just as in the case of Stoke's law, it also applies to the sound of an acoustic transducer
(microphone or speaker diaphragm) and describes the temporary eddy current component of the
sound field (Reference # 1, S. 248). ).
5.2.3 Theory of dimensional arrangement A section between two spherical disks defines each
(spherical) shape, and a sound wave concentrically dissipates from only one point runs out into
the space-time between two time points. In the far field, the shape changes to a near cylindrical
shape. With a large number of sources, a system of many cylinders or three orthogonal
components is required. Reference: FIG. 1a: hatching of the segments a) Wave theory, in
particular for compressible media (atmosphere), is complex. Energy flow is generally generated
from the vortex sound field, as are the (time-variable) rotor (or frequency) and non-vortex
(translatable) fields. Gauss's law, on the other hand, remains concrete. That is, the influx of
directional (vectorized) energy (sound field, sound waves, partial waves) into the volume creates
a difference between the (existing) inflow energy and the non-outflow energy in the volume
surface. Since this is a basic equation of energy, the theorem is universally valid for partial wave
fields as well as radiation and acoustic fields. At that time, each type of energy flow flows through
to the (expected) side volume. The recording and reproduction must be reproduced in a
particularly echo-free manner without altering this energy flow. The absorptions and reflections
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that occur outside the volume merely produce a reverberation source, and the sound in the
recording space is characterized. -Reference: FIG. 1a: pure radiation component b) Such capacity
may be chosen arbitrarily in theory. That is, in the case of polyhedra (equal sides), in particular in
the case of a rectangle (cube) or, in the case of a theoretical “beating” (polarization) sphere in
the direction of each energy stream or sound stream, Absent. The cube is the simplest form of
this. c) A cube 50 cm long was selected (in the remote field). At that time, if wave energy is
interpreted as a partial wave flow flowing in a specified direction, it is good for concrete
explanation. Since the playback sound should be as consistent as possible with the recording as
possible, the recording and playback acoustic transducers should not be separated by the body
(wall, box) but should change the energy (sound) flow. 5.3. General theory for the recording
side The inflow and outflow acoustic energy of the recording side generated by the passive
diaphragm can be measured by the measuring microphone (s) per side. For this purpose, one
measuring microphone per face is used approximately, but as far as the capacitive arrangement
the correlation of the microphone with the distance of the (sound) source remains slightly. The
measurement error between two opposing diaphragms of a cube is described in three
dimensions, three vectors, all Gaussian (see above), and a temporary in-volume source is also
approximately described.
At the sound pressure measurement position for each orientation in one direction, if only the
"through flow" measurement on the other side is performed, the inflow and outflow energy
(difference, vector) converted to the operation time is grasped. This corresponds to a three
transducer dipole. -Reference: Fig. 1a, 2a: original travel time difference 5.4. On the reproduction
side, only the ideally matched (conical) volume diaphragm reproduces the measurement on the
recording side. The side walls of the cube can each be regarded as a rectangular partial
diaphragm. Since each position on the surface is excited, here the inverse action of the
diaphragm (annular field) produces oscillations in phase with the recording space (theoretically,
due to the oscillating coil per dispersed and excited diaphragm This will be possible). However,
approximately one transducer diaphragm is used per face. In the ideal case, the vibration of the
reproduction cube acts like the vibration of the recording cube in the near region. The
optimization of the actuation time and the reproduction of the phase difference requires,
preferably, two oppositely placed cubic transducer diaphragms per audience direction. Two
transducers per stereo frequency band are optimized dipoles. The reproducibility of the (hearingadaptive) horizontal component is already expected in the cruciform dipole. 5.5. Theoretical
Results When the reproduction cube is precisely placed at the place where the recording cube
was previously according to the recording result of the recording space, the correlation of the
original phase of the recording space at the time of reproduction at each place in the
reproduction space ( The difference) can make the reproducibility much better than in the prior
art. Since time must be positive, the possibility of comparison is probably valid for only half of
the space as well as each point lying in the direction of the original sound propagation. a) The
volume on the recording side and the reproduction side can have any form in theory, so any
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polygon (especially cuboid, sphere, in particular equally equilateral) or at least non-concentric
"beating" sphere is also possible. It is theoretically possible that the arrangement itself is not
coplanar and the vector of oblique angles, and the resulting differences in the operating times are
either fully compensated or not a major problem. b) The cube is adapted to a three polar vector
pointing (polarization stereo) arrangement. The stereo dipole according to the invention creates,
in each reproduction space, virtual collinear reproduction components for each vector in the
recording space. In the adjacent sound field, the energy flow in the recording space is almost
reproduced. Therefore, stereo dipoles adapted to the invention compensate the components
(dimensions) maximally. -Reference: Fig. 2a: Stereo dipole c) Of all the orientations, it may only
require one direction in which the hearing is (stereo) adjusted.
Polarization stereo sound effects are nothing but directional horizontal components that adapt to
the hearing of local perfect spatial information. With only an active diaphragm (eg a flat 20 cm
rectangular speaker as far as possible), the energy flowing into and out of the reproduction space
was previously measured simply with only one microphone per side on the recording side Similar
to, is approximately reproduced. 5.6. Reification of vector components, electronic and
mechanical variations a) The two opposite faces of the cube are regarded as polarized systems
from a (rectangular) tube and can be reversed. According to Gauss, the mode of action of such a
polarizer is determined only by the surface reaction, so the internal structure plays an important
role only if the whole system represents the above mentioned reaction. The behavior of the case
can probably be reproduced only on solid, for example when static electricity is attached to the
end face as a transducer. b) Due to the termination of the transverse component of the sound
wave in the spherical coordinate system (conical, trumpet-like, retraction into a cylindrical
coordinate system), no transverse component is allowed on the cylindrical surface of the dipole.
If that is difficult, internal reflections will be less. Also, since it can be constructed entirely of
sound insulation, it is not unusable as far as the longitudinal (tangential) sound flow is
concerned. It is important that the energy flow be reproduced by the system as precisely as
possible along each axis and in each direction, as opposed to the interruption of the energy flow
(total echo, strong refraction) by the usual acoustic or box walls . -Reference: Fig. 1a: Radiated
components only c) The ideal arrangement according to the invention is an analog arrangement
on the recording side and the reproduction side (along with the polarization), the purpose being
the respective stereos of all microphones and speakers In the frequency band (related to the
distance between the microphones), vibration of the diaphragm of the same phase is given by the
time difference formula resulting from the operation time. By matching the correlation of the
recording and playback phases in the vicinity of the periphery of the stereo recording or stereo
playback system relative to the actuation time, accurate phase correlation can improve the
fidelity of the playback sound. Reference: Fig. 1a, 2a,: Operating time T (L) d) The internal
bulkhead always interferes. The polarity of the general-purpose speaker (opposite to the sound
field) does not provide a high effect, since the internal diaphragm hinders the generation of the
annular sound field according to the invention. However, the activation time during polarity
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exchange (in the opposite direction to the sound field) or polarization (intentional or system
specific) further enhances the disturbing effect of existing echoes. As far as the electronics are
concerned with the diaphragm control, it is possible to block the echo (of the extraneous signal)
part.
e) On the surface, the presence of a polarized sound field is unknown. The (electromagnetic)
dipole forms a polarization (oscillation) field as defined above. Also, there is no mathematical
basis for the separated sound waves. Thus, the basis of known other physical dipoles (dipolar
time, same division, echo) can be diverted. Local (differential) sound pressure and local
(differential) sound flow show similarities to voltages (E, D electric fields) and currents (H, B
electric fields) in electrical engineering. f) The operating time to sound ratio between the
transducers can be reproduced in a known operating time segmentation method, with a delay
here (approximately 3 ms / m here), eg based on "digital acoustics" (DSP), AD conversion A 16-bit
slide sound plug or the like is used. Therefore, it is almost irrelevant to the internal structure of
the system. 6. Requirements of electronic system deformation 6.1. Electronic System
Simulation a) In order to achieve spatial effects, it is necessary to simulate (e.g., electronically)
the behavior of the (presumed) case of the whole system and use it. The working time ratio
between the transducers of the arrangement according to the invention is calculated by dividing
the distance L between the transducers of such a system by the speed of sound c = 340 m / s.
The (active time converted) signals of the oppositely placed sound sources are superimposed on
the signals unique to each sound source, and the high frequency part is further attenuated by
mechanical processing. The total (or independent) component is additionally attenuated as an
acoustic effect and can oscillate back and forth many times. Due to the pure reaction behavior
(action = reaction), the (almost) non-delayed parts can be reconciled without problems
(moderately) without problems. A simple polarity exchange of the components and the
loudspeakers corresponds to the timely intermediate shutoff device (+/-) of the signal inverter. Reference: Fig. 1 c: Case (also two tubes) b) A variable (operational time) regulator can ascertain
(primarily) the best condition for each frequency band. However, only the symmetrical actuation
time corresponding to the mechanical treatment is variable. Thus, if the blocking device for
placement is compatible with the invention, the behavior of a separately adapted system
according to the invention follows in the manner described above. When the phase (length) of
the reproduction system is also correlated with the phase of the recording system, the phase
(operation time, length, interval) in correlation between the recording side and the reproduction
side is the main. -Reference: Fig. 1d: Working time shut-off device 6.2. Frequency path
compensation and measurement according to the new standard a) The frequency progression of
the acoustic transducer is 1 watt of power for the interior of the transducer's dissipation
direction (standard acoustic wall, box, interior of car) , 1m intervals are measured.
This measurement method is unsuitable for systems adapted to the invention. By means of the
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side radiation, effective measurements can be carried out just in the immediate vicinity of the socalled “spindle of the stereophonic sound” (17 recordings principal meeting 1992 lecture by J.
WUTTKE, SCHEPS Chamber, Karlsruhe “2 years of spherical microphones "reference). The
measurement for this should be realized as appropriate to the system and adapted to hearing,
and should also be arranged parallel to the two side transducers, for example using a dummy
head. This new measurement method also means to develop a system-appropriate converter for
the system, the arrangement of the system according to the invention being valid for the
frequency and phase paths. Frequency path and mechanical A. P. S. The operating time delay of
the system is measured and compensated actively (electronically) in a known manner. The
microprocessor also allows for more effective correction. 6.3. Acoustic transducers with
parallel dissipation of phase, high reference width flat diaphragm with universal polarity are
hardly manufactured. Phase fidelity at the poles of the cabinet is even more important. Conical
diaphragms, when placed first (in relation to the transducer diameter), of the long tube, cause
muffles from operating time defects with increasing frequency. The diaphragm is also made to
generate a plane wave approximately, for example, attached to the tube. Thus, the transducer
may be mounted internally (e.g., inside the tube). The extremely phase-insensitive transducer
(JORDAN JX 50, D = 50 cm) is then affixed to a flexible, permeable foam plastic wound L = 35 cm
cylinder and a 40 cm tube with spacing means Embedded in Even though the sound pressure is
weak, an excellent reference width can be obtained with the same speaker polarity. Asymmetry
with respect to the axis occurs. -Reference: Fig. 2 f, 2 g tube coating, Fig. 1 c (fill in the tubes with
dashed lines) 6.4. The complementary superimposed lateral sound sub-bass speaker
complements the still insufficient bass in a known manner (independently of the orientation
measurement). Acoustically polarized stereo system (A.P.S.) adapted to the invention In the
universal homopolar operation, the monaural part bloats the tube in the bass region just like a
gas, resulting in improved bass reproduction. Moreover, the small central opening exhibits a
measurable bass echo effect in the lower half of the critical frequency (about 50 Hz). From there,
it is possible to select a transverse sound wave, which can be superimposed on the longitudinal
sound wave for system optimization.
The case of the new system moves up and down laterally. This corresponds to the abovementioned expansion and contraction of the cylindrical cabinet. While the frequency associated
with the azimuthal measurement dissipates, for example, in the longitudinal direction (here over
the side pole), a bass emission unrelated to the azimuthal measurement occurs in the transverse
direction. The electrodynamic expansion and contraction or the two (elastic) quasi- "gaseous"
bulges solve the problems with the (hard) tubes described above. The cylinder, which can be
extended above the cylinder fixed on the lower side, is folded back and is able to "up and down"
the periodic movement of frequency laterally in any manner. 7. From recording to playback,
3D acoustics 7.1. Recording System On the recording side, the same regularity (only the reverse
of the above speaker system) can be used for the purpose of polarization reconstruction at the
receiver side of the acoustic axis on the recording side. The following theoretical assumptions are
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reached from the relay on the recording side: a) On the recording side, a pressure gradient
microphone (Niere), which has been known for a long time, corresponds diagrammatically and
extensively to the design principle of the acoustically polarized recording side. The diaphragm of
the microphone is placed very closely there, which corresponds to the meaning of the term
"gradient". b) In order to achieve an arrangement compatible with the invention, instead of
collecting the microphone relay gradients in a certain frequency band, it is now necessary to
separate and relay each frequency band separately. The slope also has to be a noticeable (defined
from the operating time) difference in the sense of improving the correlation between the
transducer shape (too large) and the regeneration side too large. This requires a connection
which is as unobstructed as possible with a greater distance (e.g. 15-100 cm) and which also has
less resonance (see regeneration system above). However, in a cylindrical coordinate system, the
plane of the transducer can theoretically be equipped with a large diaphragm. c) For each
(orthogonal) component, the sound emanating from the sound source on the recording side by at
least two transducers (with its diaphragm better) instead of by a general purpose (one-sided)
pressure recording device The energy flow (vector) should ideally be measured or generated or
"spilled out". -Reference: Fig. 2a: Arrangement for recording, 1 dipole d) in accordance with the
invention, the results produced with only one conventional reproduction dipole are also expected
to be improved by the "cross dipole" method (See above: Gauss's Integral Theorem). A similar
type of recording system belongs to the invention, in particular if it is produced for an
acoustically polarized reproduction system. -Reference: Fig. 2a cruciform: two polarized
cruciform stereo dipole 7.2.
From recording to reproduction, interrelated integrated system a) In the ideal recording space
and reproduction space, the same orientation phase (motion of the diaphragm) corresponding to
the sound wave actuation time between the transducers is a pair It is a habit of trying to reach a
converter that This is achieved particularly simply by making the transducers equally spaced, for
example 70, 50 or 17 cm (approximately hearing intervals) in the recording and reproduction
space. An error occurring in the operation time can be compensated for the positive time
difference by correcting the time constant (action time component) caused by the interval. Many
systems (parallel and coaxial, passive and active, activation time conversion) enhance the
operation. The operating time correction is illustrated in FIG. 1 d, where the 1 × T (L) b polarized
oscillations only from frequency band 2 to pin 2 can be diverted to the polarized recording
system for each spatial axis. Thus, the playback system can divert polarized copies to each
coordinate axis of the recording space. The working time ratio and the intensity ratio of the
recording space are ideally reproduced in the reproduction space (for each axis). This is possible
if the recording / playback transducers are equally spaced. c) A moderate sound stream
composed of energy flowing into and out of the recording space reproduces a correlation which
is arranged as high as possible in the reproduction space (abutment on the diaphragm of the
loudspeaker) and adapted to the operating time. Theoretically, at least two dipoles with four
transducers are required if appropriate for aurally accurate reproduction (= cruciform, bilobal, a
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component adapted to timely hearing). In principle, well-known and unique stereo dipoles on the
recording side and the reproduction side, for example, a "cross-type dipole" which is retracted by
superposition, antiparallel (angle 180 °) and integrated are also used. d) Boxes and acoustic
walls are known which are arranged at offset times in the reproduction space. But now the
system already contains the operating time error in itself. The transducers can be adapted as
long as possible and operated at staggered operating times so that the sound flow in the space
can be pushed forward like a pump. The recording space can be covered with recording dipole
line (s) (rows, columns) on time of operation. Therefore, if a reproduction system geometrically
equal in phase and in the reproduction space is attached to a frequency band up to a time
constant (delay), the original acoustic space should enable an extremely extensive reproduction. Reference: Fig. 1a: Operating time offset Te) Purely subjective and accurate electronic
compensation with regard to errors in operating time and intensity is difficult (Amateur already
has problems with surround system when adjusting operating time ).
However, a system that is already adapted to the two inventions (dipoles) for that purpose seems
to be sufficient as a substitute for four surround speakers. Amateurs often consider the extremely
spatial effects of stereo dipoles suitable for the sole invention as for surround. 8. Limited
Conditions Separation or Reflecting System walls and system bending may block or prevent
progressive energy flow. The generated reflected wave runs in the opposite direction to the
original sound wave and (partially) terminates the sound flow. The upright component changes
the sound flow of the original primary acoustic polarization characteristic curve. The opposing
sound waves, which have already been generated in the opposite direction, are first echoed
(backward) with the defined characteristic curve and are adapted to the requirements for
dissipation (wide range) in this form. Physically, the same method of operating the diaphragm
according to 2.2a and ideally adapted to the operating time is required. Intentional polarity
exchange is extremely misleading, correlated, but rarely with the recording side (or just one
component). Since only the action of the system cover in the area outside the system is
determined, the operation on the elements of the invention (operation time) allows extreme space
effects (reflux). 8.1. Known microphone systems with two opposing directional microphones
per universal microphone arrangement stereo system with directional effect are even slightly
polarized and listen better because of the great sensitivity of the hearing. But this is a secondary
effect. Without clarifying the sound waves of the primary polarization treatment (inherently
progressive and also the generation of sound waves along the line with as few reflections as
possible), the organization and recording corresponding to the hearing follow the abovementioned principle, see above ) This is not included in the scope of the invention. a) Sound
waves in space form a two-dimensional surface wave (2D limit surface wave) on a large
acoustically conductive surface (body). Such already flat (3D to 2D) surface modified surface
waves are used for marginal surface microphones, as is well known, and their recordings are
extremely spatial. However, polarization is first achieved by the additional curvature of the
already planarly modified spatial configuration (for example by bending the flat limit surface into
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a tube or into a semi-clad tube). Sound waves are transformed into linear (1D) progressive (plane)
waves in this subspace. The extended special cylinder may form such end pole-defined line
segments in or on the limit plane on the recording and reproduction sides. b) The known
pressure gradient microphones are the first step of the microphones adapted to the invention.
The schematic structure can be selected in principle.
However, two (same) diaphragms compatible with the invention are required for the specific
relay frequency band. In addition, the distance between the end diaphragms is selected to be
large (for example, the audible distance), and the acoustic polarization along the generated line
segment is used. The reproduction side is comparable to pressure gradient speakers. c) Locally
polarized recording is performed, for example, with known ORFT microphones. Beside this
microphone there is a tube connecting the two end recording capsules. The tube, which is far
away from this tube, is outside the range of direct tube pointing and is bent at an angle of about
110 °. Since the total distance is only about 17 cm, the directing action of the much shorter
intermediate tube is in any case only slight. Additionally, the internal structure also does not
include elements compatible with the invention. d) The spherical microphone (KFM) comprises
the features of the invention with two side (opposite) transducers, and also shows that the
attractive spatiality also has the inventive recording side characteristic. The spherical retraction
of this arrangement is as low as the dummy head, while the sphere acts concentrically and lacks
each polarization passing through the spatial axis (cylindrical or elliptical). However, on the
reproduction side, based on many large transducers, one can choose a spherical center segment
(more accurate oval). As in the case of the KFM (side converter), the frequency path is now
optimal in relation to the stereo main axis. KFM is also a modified limiting surface microphone.
The latter also utilizes surface waves that have already been surface-deformed (where they do
not run on the sphere) and polarizations without each linear regression. e) In the case of
directional microphone recordings, as is known, tubes (tubular directional microphones) and flat
or parabolic reflectors in the recording orientation are used for fluxing. One of the many sources
is directed to select it from the side sources. In the case of stereo dipoles, this directional effect is
not primarily utilized, but predominantly non-selected (and partially orthogonal) properties. The
general action takes account of many non-selected sound sources, and in particular, the
directivity characteristics adapted to hearing are entirely non-selected. Such non-selective,
inventively-adapted recording dipoles (for example a tube or tube with a diaphragm attached, see
FIG. 2, attenuated as effectively as possible) show the orientation of the defined recording source
( Often referred to process claims). Transducers are generally more representative of special
recording objects than are spherical microphones. 8.2. Each elementary rectangular impulse
of the reproduction side sound is observed only in the case similar to a pressure collision with
the air pump, with the two sides open or the two suckers (diaphragm) closed.
In the known non-use speaker arrangements, primary polarization is not used for the purpose of
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the invention (wide coplanar, progressive, plane waves from the far end of the operating pole
with the transit time transition type). -Reference: Fig. 1a: Radial induction, in the case of T1, T2Ideal resonance suppression (in particular, broad band resonance) generates broad and
progressive (running) sound waves in a system according to the invention. At this time, the
reverse or stagnation portion is not included substantially. The combination of the constituent
elements compatible with the invention then reproduces more or less characteristic effects. The
intrinsic secondary resonance part is in principle completely tolerated, in particular in the bass
region. The separating wall and the reflecting wall make the effect act only in part (secondary
effect). The characteristic echoes that occur and the stagnant acoustic waves (resonances) then
destroy the primary polarization effect of the acoustic waves traveling widely in one direction
(and also as pure forward as possible without reverse, in which case forwardness + reverse
Progression = stagnant sound wave; in the case of repetitive reflection with frequency selection:
resonance). Similarly, assembly walls and other internal walls are formed in relation to the size of
the obstacle to the energy flow, but the others have to be confined to the external space.
However, the error can be compensated sufficiently actively. However, it fills the internal space
of sound absorption even with echoes that lack sufficient conditions (acoustic wetland). The
internal coupling between the transducers is certainly disturbing but determines the behavior of
the system cover. Similar or homogeneous behavior can be triggered by additional measures, in
particular by electronic means (selective enhancement, eg balance, electronic connection,
simulated activation time). -Reference: Fig. 1d: Modification of the operating time cutoff T (L)
internal compartment division-Active loudspeaker diaphragms are passively and approximate to
the arrival sound of each other active transducer (stereo frequency band) Act similarly to the
opening. When there is an ideal phase correlation between recording and playback, the pressure
acting laterally in the system is lowest. a) Conical transducers already move away from
commerce practice in terms of phase fidelity, and the reproduction of treble is additionally
impaired. It is not very appropriate to arrange the diaphragms or section planes in an oblique
relationship. The oblique arrangement already leads to the same fixed object through the
opposite phase part for silencing of the defined frequency by means of a planar fixed diaphragm
(of twice the size compared to the main wavelength) . It is no longer fulfilling the criteria of the
invention, since the relevant repercussions are there. b) Cabinet resonance is desired in part as a
stagnant acoustic wave (resonance enhancer, cold echo, frequency pitch leveling) in the case of a
general purpose system.
A system adapted to the invention avoids such modifications as much as possible. In the case of
an arrangement conforming to 1.3, echoes and vibrations are produced on the fixed build or
partition wall, which significantly disturbs the polarization effect which was partially achieved by
the superimposed sound waves. c) "Flexible tubes", for example, are equipped with partition walls
with hard acoustic reflections. Other tube arrangements are also incompatible with the invention.
However, as in the case of simple tubes, however, the installation of an operating time converter
which is adapted to the same method or the opposite (stereophonic) system works in an annular
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space with relevant behavior in the external space. It is a system that can be made and
accordingly adapted to the small quality requirements. d) Known inclined and active or passive
tube arrangements still generate polarization (vector) components even now. Sound waves
arriving earlier at a fixed slope at a minimum spacing do not already coincide with sound waves
arriving late (eg at maximum spacing) and they distort them a lot. The oblique angle causes an
operating time difference between the upper and lower parts of the same object on the fixed
diaphragm and relates to the case of high frequencies (silence). In the case of a flexible thin
diaphragm (see MANGER transducer (R)), this silencing is sufficiently blocked by the sound
waves running laterally above the passive side diaphragm, this sound wave being not denatured
in the external space To be transferred. In the case of passive actuation of such a flexible
continuum (plastic coating), sufficient parts remain polarized. e) The stereo semiconductor (1.3c)
is also a source of echo, and it is partially sent out to the cabinet on the slope and further echoes.
Due to the arrangement of the less echoed loudspeakers having a relatively large surface, the
absolute substance between the two loudspeakers is directly connected. It occurs in connection
with the phase defects caused by the different operating times of the conically shaped, stiffened,
additionally slanted loudspeakers used there for high frequencies. 8.3. Inherent acceptable,
but room for improvement defects a) Replacing a rigid diaphragm with a flexible one
theoretically solves some of the phase problems. Furthermore, it changes only to such an extent
that the sound field image on the same plane is regarded as infinitesimally small, and is
irrelevant to minor curvature and bending. The phase defects in the angular arrangement of the
rigid diaphragms can thus be compensated theoretically enough, for example by means of a
(curved) connecting tube inside the cabinet, according to the inventive concept. Thus, changes in
the position of the technology from the spirit of the invention may occur even with the shaft
component.
b) Unwanted unusual cylindrical circumferential resonances should be suppressed as much as
possible, and, above all, approximately the same resonance frequency of the fitted (sticked)
transducer. It is also effective to partially modify the cross-section of the tube, as well as the
uneconomical wall thickness for antiresonance. Ellipses and hyperboloids are approximate
shapes of acceptable cylinders. However, the change in cross section generates a transverse
component, as is well known during total longitudinal flow. In cross-sectional orientation, the
pressure and tension generated for this reason (reinforcement) necessarily form an obstruction
for all non-cylindrical shapes. c) Internal pressure-the structure of the transverse component can
be eliminated very widely by the internal longitudinal arrangement (tubes and tubes). The
longitudinally structured (also incorporated) bundle is first subjected to expansion of the
spherical sound wave propagation. The intensive basic sound waves are subjected to longitudinal
deformation together with the spacing means, for example by means of (variable length) inner
tubules, corrugated paper (effective least expensive treatment), deployed bast or plastic foil. The
propagation direction is promoted by suppressing other propagation directions. A
circumferentially lightly breathable laminated tube disturbs the pressure configuration and the
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circumferential resonance, even in the case of simple procedures. Bundles of the same length as
the tubules can be of completely different variants to produce different basic types. -Reference:
Fig. 3: Laminated structure tube d) Directivity according to the same method of the system
suitable for the invention, by means of polarity-exchanged speakers, predominantly in many
recordings at the time of reproduction, a prominent opening in the outermost part of the space
Often act as "ghosts" (quotes). When using one-point stereo recording, which has a large
correlation between the recording interval and the playback interval, both acoustic transducers
(48 cm) are by far always predominantly wider in playback It has been described as "natural
thing". f) The eight stereo signals always have an amplitude and a phase difference. This has
already been achieved at the recording side by existing or intentional asymmetry during
microphone installation (e.g. one point recording). Pure single signal is the same as A. P. S.
During circuit installation of the system, muting occurs on the system center vertical line. In the
reproduction space this is corrected by asymmetry and wall reflections. With an acoustic
processor, single parts can be selected in a known manner and, as in the surround system, can be
gathered in the separately reproduced intermediate frequency band. g) A system adapted to the
invention acts in phase stereo acoustically on the current recognition situation.
Here, two or more recording frequency bands up to this point are collected (accumulated) in the
“mixer stereo sound” style, and reproduced as general-purpose intensity stereo sound (=
amplification stereo sound), which is used to determine the direction. It can introduce errors.
8.4. Lateral one-dimensional polarization sound field a) Based on the previous
considerations, instead of one-dimensional transverse polarization sound waves passing through
the tube-shaped bonds, it passes through plane bonds parallel to the spacer (stacking) It is clear
that it will be achieved. For example, if the tube shape is formed perpendicular to a parallel plane,
the horizontal component is suppressed and lies orthogonal to the stack (ie parallel to the plane
vector of layer formation). Instead of a one-dimensional (tubule-shaped) structure, a twodimensional (planar) structure (lamination) can be used. At that time, only the inherent
transverse component of the sound wave is suppressed. It is speculated that (as such) polarized
acoustic waveforms may be used elsewhere. -Reference: Fig. 1b: Description of small tubes or flat
ties c) Such a structure is compatible with the invention. For example, elastic foam plastic is fitted
in the longitudinal direction of the tube so that, for example, the bass component acts strongly in
the transverse direction on the coating of the tube, and at the longitudinal end the high
frequency acts on the medium-high-tone diaphragm Do. The sheath of the tube can also be
selected to be more rigid in the central part in order to suppress acoustical shorting in the
vicinity of the transducer. d) Primary arrangements (converters, polarizers) parallel to passive
and active systems (internal and external) can always enhance the polarization or cohesion effect.
In general, all parallel (longitudinal incorporated or reflected) elements appear to enhance the
effect. An accurate phase-shifting arrangement of parallel high, medium and low frequency
systems and operating times appears to be effective both internally and externally. 9.
Conclusion 9.1. One-dimensional longitudinal arrangement A single sound source on a tube with
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one side open produces polarization effects. The two openings can be replaced with passive
diaphragms (except for two speakers). The first stereo arrangement makes the effect clear.
Actively controlled diaphragms (e.g. directional impulses) produce a first-order progressive
sound wave. Two passive adaptive diaphragms (or one opening) with a delayed actuation time
disturb the structure at atmospheric pressure. The sound is focused with the longitudinal
direction of the tube as the main orientation, which is known as a cylindrical directional
microphone. The (weakened) interior space hardly disturbs the length component and converts it
into working time to reach the end of the tube. Sound waves traveling outside (along the tube)
are converted to time at the end of the tube and regenerated.
Contrary to the closed cabinet, the open tube does not have a longitudinally reflecting surface. An
effective silencer reduces the resonance of interfering sound waves (especially circumferential or
lateral). Therefore, a sound flow of approximately equal operating time is generated around the
body or body. -Even if the operating time difference is short, spatial effects that can still be
perceived subjectively are given. The thin tubes collided directly or by means of the transducer
react in a longitudinal direction at approximately the same time. -The diaphragm placed
oppositely can receive the same kind of movement as a reaction almost without delay. The
ellipsoid or spherical center interrupted by the diaphragm is of approximate shape. Similar to
boxes, tubular cabinets of finite size also prevent direct "acoustic shorts". Lateral resonances can
be tolerated in the bass region (below about 100 Hz) which is independent of the orientation
measurement. The tube shape is not an unlimited cylinder. The electronics operating time
simulation improves the system. 9.2. The following is a description of the tangential (as well
as axial) sound propagation with some essential properties a) sufficient suppression of the
(lateral-) resonance and the associated at least locally distinct acoustic polarization. Atmospheric
air flow in the tangential direction is clearly detectable, especially at bass frequencies along the
(connected) tube. With one-sided (axial) sound dissipation, the loudspeaker can hardly make
orientation measurements in the same orientation. Hearing pointing to the orientation of an
active acoustic dipole works best as the receiving dipole. An external separating body (also
position adjustment behind the body) may improve the effect. The effect of the system is clearly
recognizable if it is placed outdoors, on concrete or on the ground. Longitudinal slits placed
opposite one another in the laminated cylinder coating do not emit noise, even if the control is
too high. -There is little lateral oscillation of the cabinet (tube), even when conforming to other
construction schemes. When approaching the ear to a special steel tube of -2 mm thickness, for
example, even a faint (remote) sound can be sensed. Reference: FIG. 3: Laminated structure tube
b) The claims relate to the primary generation and utilization of polarized waves generated by a
vibrating body and extend to its special embodiment. Selective transducer technology (nonconforming speakers, a set of transducers not conforming to the polarization principle, currently
non-polarizing recording technology) is secondary in that respect. 9.3. Some variation
polarisers, polariser shapes, acoustic conductors, efficacy enhancers and transducers have been
varied, for example: a) formation of an acoustic polarization dipole, in particular formed by the
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arrangement of a set of coaxial transducers, coupled between polarized materials (acoustic
"conductor" for polarization); b) different Main axis of action (polarization axis), in particular the
geometrical longitudinal axis; c) body with main orientation available for polarization (acoustic
conductor, sound insulator) or its surface; d) approximately cruciform, elliptical Or polygons, in
particular rectangular cross-sections; e) rotationally symmetrical acoustic conductors, in
particular simple tubes and (approximate) circular, elliptical or hyperbolic, double conical
(diamonds) or other polygonal rotations F) Arbitrary cylindrical, in particular circular, polygonal
(for example rectangular), further tapered or expanded cross sections, as well as deformed cross
sections without substantial echo characteristics; g) as far as possible (working time adaptation
Intermediate form leading to excitation of the same phase and opposite phase, especially And
have a unique stereo base that strongly diffuses, intended for stereo playback / stereo recording;
h) unidirectionally arranged systems, in particular quasi-parallel (anti-parallel) or focusing along
several line segments Control device adapted to the operating time between systems or systems.
-Active systems (polarization enhancement in space, incorporating one or more transducers or
polarisers by polarization systems along multiple segments, in particular working time
conversion type,-passive body, longitudinal Fibers or laminated bodies for wave reinforcement
(transverse wave suppression),-Distributed polarisers or acoustic conductors, in particular the
integration of one conductor (cabinet, tube) per acoustic transducer in an inverted (especially
antiparallel) arrangement As a result, due to the mutual superposition of the eigenwaves, a
difference sound wave or an applied sound wave is generated to cause polarization. -Transducers
or complete systems of parallel or coaxial working time delay arrangement as a new system. i)
Polarization enhancers that are effective in the preferred orientation (equivalent to the lateral
suppression factor), in particular-from the substance body, the surface or the focusing (tubular)
structure to the polariser-placed on or quasi to it Parallel active and passive polarisers or
resonators. k) excitation of surface polarization along longitudinal sound waves or body
polarization lines and its use. On the reproduction side, further direct (electronic) vibrational
excitation (for example of the diaphragm) takes place in the electromagnetically controlled body,
in particular in the metal tube, so that acoustically polarized oscillations occur. Lateral
polarization corresponding to the spacing (parallel plane) by means of the focusing surface. l)
Curvature or (moderate) bending of the main orientation or alignment axis, in particular
orthogonal to the audience or natural sound source (for the recording side), aiming to create as
good a spatial impression as possible, without direct sound from the speakers For example, to
guide around the audience and the sound source (because the direction of the ear is almost
orthogonal to the axial direction everywhere). m) Polarization system placement in multiple
spatial axes to achieve 2D or 3D effects. n) Arrangement, phase adjustment and arrangement of
all the diaphragms on the reproduction side and the recording side. o) A system that controls the
auxiliary frequency (especially the high frequency carrier frequency or resonance) and adjusts
any audio frequency harmonics (also already flattened sound waves). p) The active dipole
diaphragm is substituted for a passive, in particular an activation time conversion type single
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regeneration device, in which case spatial effects with two single sources are obtained. This is
achievable by the elimination of the speakers. As with the openings, passive diaphragms prevent
the generation of atmospheric pressure oscillations inside the cabinet, and are separated by a
strong blocking material as well as partition walls and acoustic walls. q) alternative acoustic
excitation of polarized bodies, in particular electronic or magnet dipole excitation, instead of on a
loudspeaker diaphragm separate from this, the system directly (two) bodies or An axial force of
vibration acting on the end surface can be generated. r) Structures or surfaces (coatings) that
significantly enhance in any major orientation, which are used for the construction of the body
and primary polarization recovery / recording using coated sound.
s) It became clear that the same recording technology was effective. In particular, 2D or 3D
systems (polarizers orthogonal to the cross axis) cancel the 3D effect. Scan lines and slits (with a
phase adjusted to the operating time) have also proved to be effective. t) Additional mounting of
external separators (sound insulation, bulkheads, separating disks) is possible. This reduces
acoustical shorting in the area near the device and enhances the sound flow in the far field or
other partitions that are also between the audience and the device. The two inventively adapted
(dipolar) system should now be able to substitute for the four surround system boxes. 9.4.
Supplements a) The whole system forms an active "polarizing stereo dipole". This is an axial
dissipation device, which vibrates like other (e.g. electrical) dipoles and may be equipped with
two acoustic transducers (speakers, sound sources) at the poles (terminals). Within the
intermediate space coupled with the (weak) tube, an equipotential plane is formed that is (almost)
parallel (polarised) to the connection axis of this acoustic "conductor". A progressive wave
(longitudinal wave, impulse law) is formed along the surface (coating). This "polarizing dipole" is
different from the known dipole radiation (dipole loudspeakers). b) On the reproduction side, the
high frequency forms a dominant plane wave instead of the concentric wave (see EP 0500294A2, column 2, line 11-14). This even less desirable directional structure can be used for high
frequencies unrelated to orientation determination only in a hearing-sensitive (horizontal)
orientation. Such horizontally polarized (and nearly coplanar with the auditory) sound field
should, in the ideal case, approach the headphone characteristic (180 °), so the wave front is the
azimuth of the sound field line. It reaches the ear that is oriented and sensitive to the left and
right hearing instead of the traditional frontal repetition. The oscillation axis is parallel to the
auditory axis. c) Each linear regression results in the polarization utilized for the purposes of the
present invention. Then, as is well known (optical, see antenna) polarization attenuates the
(disturb) component of the vibration. This property can be exploited for ultrasonic processing
equipment. d) The gradient of the energy of the (acoustic) source is always an amount (vector) of
directivity. The temporal change, ie, the first-order continuous sound (tension) is a component in
the negative direction with respect to the incoming sound (pressure). As a result, an in-phase
system control related to the operating time ideally results. Therefore, the recording system
records all components at defined intervals, which may result in polarization. e) Polarized stereo
signals can be generated by at least two polarized single sources.
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Superimposing two ideally antiparallel separated polarization single sources and aligning them so
as to be sensitive to hearing leads to a polarization stereo dipole. The two are combined because
they can be integrated in the cabinet. Since the active sound source of the opposite loudspeaker
diaphragm produces a passive diaphragm oscillation (like the opening), the active signals of the
two loudspeakers allow the first oscillation to be assumed. f) Two or more arbitrarily distributed
sound sources form a (3D) vector also in the direction of the intensity change and the actuation
time difference, for example by the three components of the gradient appearing in the
orthogonal cross axis. Although this completely complements the spatial information, it has not
been used much conventionally. 10. Regarding the original idea of the invention a) The
original idea was that each crucible with a fixed length (minimum) had a resonant frequency. The
main resonance is generated at a length corresponding to half the wavelength. Extremely short to
very long wedges of different lengths cover the entire audible spectrum and can be excited
towards their longitudinal oscillations. With the aid of a speaker or a pair of speakers mounted
on the pole of such a tube filled with such a tub, the tub will excite vibrations. Instead of coffins,
different lengths of glass fiber were also planned. b) The effects found on this occasion were
confirmed to be compatible and effective even without this treatment and with the conventional
instructions. Most breathable intermediate spaces have a clear effect. By exchanging the polarity
of the speaker, it became possible to hear in harmony more without much expense. Therefore,
after that, tube bundles of various lengths were used, and it was not yet clear at first whether the
atmospheric piles of small tubes of different lengths would vibrate to produce an effect. It is
surprising that the simple (weakened) tube itself exhibits a clearly discernible effect in the
operation of the opposite pole, even though the sound generation at that time is still
unsatisfactory, because of the improper transducers for the system. It should have been. Due to
the correction of the description, the defects were also heard gradually and extensively. The
invention now artificially reproduces the ratio of spherical waves in the remote sound field, with
a dominant high profit. c) The reaction force (action = reaction) acting in the axial direction
(longitudinal direction) with almost no time delay should be studied further. Due to the extremely
high sound velocity in the coating, each acoustic conductor is capable of an action similar to that
of the HERTZ dipoles known in particular from high-frequency technology, in comparison with
the (very long) wavelengths generated in the material . Furthermore, it is also possible to direct
or reverse the direction of each sound source in the outer space towards the potentially reflected
sound source in the inner space of the body.
11. Summary (Required in the instruction manual) The method of polarization sound field
generation was described. An unusually wide spatial stereo effect is produced in the extremely
broad audible range due to the azimuthal action of the very small semiconductor integrated
circuit system. Capability (internal structure, alignment, surface, resonance) on the main body
(acoustic “conductor”, including “sound barrier” or “reflector”) is minimally utilized for
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the formation of spatial preference (polarization) ). The 3D acoustic space on the recording side
is already considered sufficient with an acoustic transducer conforming to this method, and can
be reproduced in phase without electronic aids. Nevertheless, the latter compensates the
activation time component or the balancing of the active frequency and phase paths in favor of
the system-specific features.
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