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JPH0644291

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Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JPH0644291
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
deep bass speaker device for outputting deep bass sound, and in particular, the present invention
is designed to allow only a viewer to hear loud bass sound without producing loud sound in the
surroundings. The present invention relates to a bass speaker device.
[0002]
2. Description of the Related Art In recent years, audiovisual systems for outputting stereo sound
have become widespread in general homes.
[0003]
FIG. 5 is a perspective view showing such an audio visual system.
[0004]
In FIG. 5, reference numeral 51 denotes a remote control device operated by a user 52. A radio
signal a2 from the remote control device 51 is received by a television receiver 53.
The television receiver 53 is mounted on a rack 54 that accommodates a volume adjustment
amplifier and the like (not shown).
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The heavy bass speaker device 55 is disposed on the right side of the rack 54. The left and right
audio output terminals of the television receiver 53 are connected to the left and right audio
input terminals of the volume adjustment amplifier housed in the rack 54, respectively. The bass
speaker device 55 is connected to the left and right audio output terminals of the volume
adjustment amplifier, adds the left and right audio signals from the volume adjustment amplifier
to create a monaural audio signal, and generates a monaural audio signal. The bass component is
output as the deep bass sound b2 as voice.
[0005]
On the left and right sides of the television receiver 53 at predetermined distances, left and right
middle high and low sound speaker devices 56 and 57 are disposed. The left and right middle
high / low sound speaker devices 56 and 57 are connected to the left and right audio output
terminals of the volume adjustment amplifier, respectively, and output the left and right audio
signals from the volume adjustment amplifier as left and right audio c2 and d2, respectively. It is
supposed to be. The left and right middle-high-pitched speaker devices 56 and 57 are generally
arranged at an interval of 2 to 3 m, but in a large room, they are arranged at an interval of 4 to 5
m in order to enhance the stereo effect.
[0006]
According to such an audio visual system, the user 51 listens to the left audio c2 from the left
ear, listens to the right audio d2 from the right ear, and listens to the heavy bass audio b2 from
both the left and right ears. it can. However, in such an audio visual system, if the volume is
increased in a general home, the sound leaks to the next room, etc. cause inconvenience to the
neighbors and the family living together, so a music source that should originally be heard with a
loud sound is better Also, the current situation is that you can only listen to small volume audio
visual sources
[0007]
Here, as a characteristic of the sound, it is difficult to hear the bass when moving more air, and
the sound volume has the property of being attenuated in half proportion to the square of the
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distance as the distance increases. Also, in terms of human hearing, bass and treble are difficult
to hear when the volume is low, and bass is easily transmitted as noise. For this reason, the
volume of the deep bass sound b2 from the bass speaker device 55 must be suppressed more
than the left and right high / high tone speaker devices 56 and 57.
[0008]
However, in the case of an audio visual source which reproduces a sense of presence with a
sense of force, the sound of bass can not be obtained unless the volume is increased to a certain
degree. In response to this, a speaker device has been developed which allows only the viewer to
hear a loud sound without producing a loud sound, in particular a deep bass, around the user.
[0009]
FIG. 6 is a perspective view showing such a conventional speaker device.
[0010]
In FIG. 6, reference numeral 61 denotes a folding chair, and right and left middle high-pitched
speakers 63 and 64 are built in the cushion 62 of the backrest of the folding chair 61.
The cushion 65 on the lower side of the backrest is in contact with the lower back of the viewer
from the waist. Inside the cushion 65, a body sonic vibrating body 66 is provided.
[0011]
The left and right voice output terminals of the volume adjustment amplifier connected to the
television receiver are respectively connected to the left and right middle high / low tone
speakers 63 and 64, and the left and right voices from the volume adjustment amplifier are
respectively connected. Outputs the signal as left and right voice
[0012]
On the other hand, the body sonic vibrator 66 is connected to the left and right audio output
terminals of the volume adjustment amplifier, and adds the left and right audio signals from the
volume adjustment amplifier to create a monaural audio signal. Due to the bass component of the
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monaural audio signal, the bass vibration is performed.
[0013]
According to such an audio visual system, the user listens to the left voice of the left speaker 63
with the left ear, listens to the right voice of the right speaker 64 with the right ear, and vibrates
the body sonic vibrator 66. Thus, it is possible to experience the deep bass component.
Here, since the left and right mid-high-tone speakers 63 and 64 are disposed at positions close to
the viewer's left and right ears, the sounds generated by the left and right mid-high-tone speakers
63 and 64 are the left and right in FIG. It is considerably smaller than the middle to high-tone
speaker devices 56 and 57.
In addition, the deep bass vibration from the body sonic vibrator 66 is applied to the viewer's
body through the cushion 65, and the body sonic vibrator 66 generates almost no sound
transmitted through the air. As a result, the speaker apparatus shown in FIG. 6 can make only the
viewer hear a loud sound without making a loud sound in the surroundings, and at the same time
make the user feel the deep bass.
[0014]
However, there are vibrations that human beings feel as low-pitched sounds due to the skin,
which is a sensation, and the semicircular canals, but they can not be perceived as real sounds
unless there is a feeling of pressure due to the sound pressure coming from the ears to the last
Will come out. For this reason, due to the loudspeaker system of FIG. 6, the deep bass is less
powerful than the audio visual system of FIG.
[0015]
According to the above-described prior art, in order to prevent the leakage of the deep bass
sound around the surroundings, the deep bass vibration is added to the viewer's body by the
body sonic vibrator. However, without this feeling of pressure due to the sound pressure coming
in from the ear, it can not be felt as a real sound, and a sense of discomfort will appear.
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[0016]
The present invention eliminates the above-mentioned problems, allows the viewer to hear a loud
bass sound, causes the viewer's body to experience the bass sound, and leaks the bass sound
around. It is an object of the present invention to provide a deep bass speaker device that can be
prevented.
[0017]
[Structure of the Invention]
[0018]
SUMMARY OF THE INVENTION The deep bass speaker device according to the present invention
connects left and right bass speaker units for outputting bass sound and these left and right bass
speaker units in an expandable state. And a connecting member for reflecting deep bass sound
from the left and right bass speaker units.
[0019]
According to such a configuration, by arranging the left and right deep bass speaker units for
outputting bass sound by expanding and contracting the connecting member in proximity to the
left and right ears of the viewer, the viewer's ear can be provided. Listen to the loud bass sound,
and prevent the bass sound from leaking around.
In addition, since the connecting member directs the viewer to reflect the deep bass sound from
the deep bass speaker unit, the listener hears the bass sound so that the viewer's body can
experience the bass sound. At the same time, it is possible to prevent the leakage of deep bass
sound around.
[0020]
Embodiments of the present invention will now be described with reference to the drawings.
[0021]
FIG. 1 is a perspective view showing an embodiment of a deep bass speaker apparatus according
to the present invention.
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[0022]
In FIG. 1, the deep bass speaker device 10 is constructed by connecting left and right bass
speaker units 20 and 30 by a connecting member 40 curved in a wavelike manner.
Here, the deep bass speaker device 10 is disposed on the back of the viewer, and the right and
left in FIG. 1 and the left and right in the actual use are reversed.
[0023]
The connecting member 40 is formed by curving a plate-like member having elasticity and
reflecting a sound wave in a wavelike manner, so that the distance between the left and right
deep bass speaker units 20 and 30 can be adjusted. There is.
[0024]
The left bass speaker unit 20 has a structure in which a speaker 22 is housed at the center of a
cylindrical box 21 whose both ends are sealed.
The speaker 22 is housed with its outer shape matched to the inner diameter of the box, and the
sound wave emitting portion is directed to the upper shorted surface of the box 21.
Thereby, the portion above the speaker 22 of the box 21 forms the sealing portion 23.
[0025]
A duct 25 directed to the right is provided below the left speaker 22 of the box 21.
The duct 25 is gently curved toward the connecting portion 40.
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Thereby, the lower part of the speaker 22 of the box 21 forms the bass reflex part 24.
[0026]
On the other hand, the right deep bass speaker unit 30 is symmetrical with respect to the left
deep bass speaker unit 20, and the right speaker 32 is built in the box 31, and is higher than the
loudspeaker 32 of the box 31. The part of the part 31 is the sealing part 33, and the part below
the speaker 32 of the box 31 is the bass reflex part 34.
The bass reflex section 34 is provided with a duct 35 directed leftward.
[0027]
The audio signal input terminals of the left and right speakers 22 and 32 are respectively
connected to the left and right audio output terminals of a volume control amplifier connected to
the television receiver, and the left and right speakers 22 and 32 are respectively The left and
right audio signals from the volume adjustment amplifier are output as left and right audio. The
left and right voices from the left and right speakers 22 and 32 have high frequencies attenuated
by the plate surfaces of the sealed portions 23 and 33 respectively, and are further enhanced by
passing through the cones and magnets of the left and right speakers 22 and 32 respectively.
The area is attenuated and travels to the bass reflex units 24 and 34. After this, the left voice is
further attenuated in high frequency by the surface of the bass reflex section 24, and is output
from the duct 25 to the right as the left deep bass voice. The right voice is further attenuated in
the high region by the plate surface of the bass reflex unit 34, and is output from the duct 35 to
the left as a right deep bass voice. In this manner, left and right deep bass sound can be obtained
from the deep bass speaker units 20 and 30, respectively.
[0028]
FIG. 2 is an explanatory view showing an audio visual system using the deep bass speaker device
10 of such an embodiment.
[0029]
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In FIG. 2, left and right middle high and low sound speaker devices 2 and 3 are disposed on the
left and right sides of the viewer 1 on the front side.
The left and right mid-high-tone speaker devices 2 and 3 are connected to the left and right
audio output terminals of the volume adjustment amplifier, and output the left and right audio
signals from the volume adjustment amplifier as left and right audio c1 and d1, respectively. It
seems to be
[0030]
On the other hand, the deep bass speaker device 10 is disposed on the back of the viewer 1.
[0031]
By the arrangement of the audio visual system as described above, the left audio c1 from the left
middle high / low pitch speaker device 2 is heard by the left ear of the viewer 1 and the right
from the right middle high / high pitch speaker device 3 The audio d1 is heard by the right ear of
the viewer 1.
On the other hand, the left deep bass sound a1 from the left duct 25 of the heavy bass speaker
device 10 is heard by the left ear of the viewer, and the right heavy bass sound b1 from the right
duct 35 of the heavy bass speaker device 10 is , Listen to the right ear of the viewer. Further, the
left and right voices c1 and d1 from the left and right middle high and low pitch speaker devices
2 and 3 and the left and right low tone sounds a1 and b1 from the left and right ducts 25 and 35
of the deep bass speaker device 10 are reflected by the connecting member 40 While being
heard by the left and right ears of the viewer 1, the left and right deep bass sound a1, b1
reflected by the connecting member 40 is felt by the viewer 1's body.
[0032]
According to such an embodiment, the left and right ducts 25 and 35 of the deep bass speaker
device 10 can be disposed near the viewer 1 by adjusting the connecting member 40. Even if the
output level from the ducts 25 and 35 is small, it is possible to make the viewer 1 hear the large
left and right deep bass sounds a1 and b1 and to feel it. Further, in this embodiment, the left and
right deep bass sounds a1 and b1 from the ducts 25 and 35 can be reflected by the connecting
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member 40 so that the viewer can hear and feel. As a result, even if the output level of the deep
bass speaker device 10 is small, it is possible to make it possible to hear sufficiently natural bass
sound and to experience the deep bass sound. Further, the left and right voices c1 and d1 from
the left and right middle high and low pitch speaker devices 2 and 3 and the left and right deep
bass sounds a1 and b1 from the deep bass speaker device 10 are reflected to the rear by the
connecting member 40. Since it makes it hard, it can prevent that a neighbor's neighborhood and
the family of living together are troubled by the sound leakage to the next room, etc.
[0033]
FIG. 3 is a perspective view showing another embodiment of the bass loudspeaker apparatus
according to the present invention.
[0034]
In FIG. 3, the deep bass speaker device 60 has a configuration in which left and right bass and
surround speaker units 70 and 80 are connected by a connecting member 90 bent in a folding
manner.
[0035]
The connecting member 90 is formed by bending a plate-like member having elasticity and
reflecting the sound wave like a folding screen, and can adjust the distance between the left and
right deep bass and the surround speaker units 70 and 80. It is supposed to be.
[0036]
The left deep bass and surround speaker unit 70 houses the left speaker 72 at the center of a
cylindrical box 71 whose lower end is sealed, and the left surround speaker 73 at the top of the
box 71. Has a structure attached.
A shielding plate 74 is provided at a position between the left speaker 72 and the left surround
speaker 73 of the box 71.
The left speaker 72 is housed with its outer shape matched to the inner diameter of the box 71,
and the sound wave emitting portion is directed to the short circuit surface below the box 71.
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Thereby, the portion below the speaker 72 of the box 71 is the sealing portion 7
[0037]
Between the left speaker 72 of the box 71 and the shielding plate 75, a duct 76 directed to the
right is provided. Thus, the portion between the left speaker 72 of the box 70 and the shielding
plate 75 becomes a bass reflex section 77.
[0038]
The left surround speaker 73 is attached with its outer diameter in line with the inner diameter
of the box 71, and the sound wave emitting portion is directed upward. A portion between the
left surround speakers 73 of the box 71 is a sealing portion 78. A nondirectional reflector 79 is
provided on the upper side of the left surround speaker 73.
[0039]
On the other hand, the right deep bass and surround speaker unit 80 is symmetrical with respect
to the left deep bass and surround speaker unit at the center of a cylindrical box 81 whose lower
end is sealed. The right speaker 82 is housed, and the right surround speaker 83 is attached to
the top of the box 81. Between the right speaker 82 of the box 81 and the shielding plate 85, a
duct 86 directed to the left is provided. An omnidirectional reflector 89 is provided on the upper
side of the right surround speaker 83.
[0040]
FIG. 4 is a cross-sectional view showing the left deep bass and surround speaker unit 70 of FIG. 3
in more detail.
[0041]
The box 71 is divided between the sealing portion 75 and the bass reflex portion 77.
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The left speaker 72 is sandwiched and fitted between the sealed portion 75 and the bass reflex
portion 77. The audio signal input terminal of the left speaker 72 is connected to one end of the
cable 91. The other end of the cable 91 extends to the outside through the wall surface of the
bass reflex section 77, and is connected to the left audio output terminal of the volume
adjustment amplifier connected to the television receiver. As a result, the left voice from the left
speaker 72 is attenuated in the high region by the shorted surface of the sealing part 75 and is
further attenuated by passing through the cone of the left speaker 72 and the magnet. It goes to
the bass reflex section 77. The voice directed to the bass reflex section 77 is further attenuated
in high frequency by the plate surface of the bass reflex section 77, and is output from the duct
76 in the right direction.
[0042]
In the left surround speaker 73, the outer periphery is fitted to the upper opening of the box 71
with the sound wave emitting portion directed upward. The audio signal input terminal of the left
surround speaker 73 is connected to one end of the cable 92. The other end of the cable 92
extends to the outside through the wall surface of the sealed portion 78, and is connected to the
left audio output terminal of the surround amplifier connected to the television receiver. A
cylindrical nondirectional reflector 79 is attached to the upper side of the left surround speaker
73 by screwing or the like. The inside of the nondirectional reflector 79 is formed in a conical
shape, and the sound wave from the left surround speaker 73 is reflected in four directions.
[0043]
According to such an embodiment, the left and right ducts 76 and 86 of the deep bass speaker
device 60 can be arranged near the viewer by adjusting the connecting member 90. As a result,
the same effect as that of the embodiment of FIG. 1 can be obtained, and by providing the left
and right surround speakers 73 and 83, it can also be used as an apparatus for surround sound
output. Further, since the connecting member 90 is bent in a folding manner, the connecting
member 90 can be folded to a smaller size, and there is also an effect of making the deep bass
speaker device 60 more compact when not in use.
[0044]
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Although the left and right audio signals are supplied to the left and right speakers 22 and 32 in
the embodiment of FIG. 1, the same monaural audio signal may be supplied. The same applies to
the left and right speakers 72, 82 in the embodiment of FIG.
[0045]
[Effect of the Invention] According to the present invention, the viewer hears a loud bass sound
and the viewer's body feels the bass sound, and the bass sound leaks around. It is possible to
prevent it from disturbing neighboring neighbors and family members living together by sound
leakage to the next room.
[0046]
【0046】
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