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JPS6336699

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DESCRIPTION JPS6336699
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a
speaker apparatus suitable for use in a stereo reproduction apparatus. SUMMARY OF THE
INVENTION The present invention is a speaker device suitable for use in a stereo reproduction
apparatus, comprising: a reflector rotatably mounted in the vicinity of an audio output portion of
a cabinet; a motor for rotationally driving the reflector; A remote control means for controlling
the rotation of the reflector by the motor is provided, and the rotational position of the sill-free
lid can be changed by the control of the remote control means, so that a realistic sound field can
be easily set. It is something that can be done. [Prior Art] Conventionally, in the case of setting at
a speaker device used for a stereo reproduction apparatus, for example, in the case of a twochannel stereo, two speaker devices are disposed apart to some extent to provide a good sound
field with a sense of reality It was formed and made to be regenerated. By the way, the sound
field formed in this way will differ depending on the condition of the room in which the speaker
device is installed, even if the speaker device is installed in the same manner. That is, such a
sound field is formed by the direct sound directly heard from the speaker device and the indirect
sound reflected from the wall of the room etc., but the indirect sound is heard according to the
room conditions such as the material of the wall Because they are different, there will be
differences in the sound field. For this reason, when installing such a speaker apparatus, it is
necessary to make the effect which an indirect sound gives to a sound field be the best according
to the condition of one room. [Problems to be Solved by the Invention] However, it has been
extremely difficult to install the speaker device so that this sound field is best. That is, the
installation work of this speaker device needs to be done while listening to the music etc.
reproduced from this speaker device away from the speaker device or at the sunning position
and checking the sound field, but In general, it was impossible to move the speaker device while
in the sunning position, and it was difficult to work while surely checking the sound field. Also,
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even when the listening position changes, it is necessary to change the position of the speaker
device in order to form a good sound field, but since it takes time, the position of the speaker
device is actually changed. There was almost no change in the situation. An object of the present
invention is to provide a speaker device capable of easily setting a realistic sound field. A second
means for solving the C problem] The speaker device of the present invention is, for example, as
shown in FIG. 1, a reflector (4) rotatably mounted in the vicinity of an audio output portion of a
cabinet (2); A motor for rotationally driving (4) and remote control means (6) and (8) for
controlling rotation of the reflector (4) by the motor are provided, and control of the remote
control means (6) and (8) According to this, the rotation position of the four 7 rectors (the four
can be changed.
[Operation] In the speaker device of the present invention, the reflector (4) capable of changing
the output direction of sound by rotation can be rotated by remote control means (6) and (8)
from a distant place. Therefore, the reflector (4) can be rotated while changing away from the
speaker device or checking the sound field at the sunning position to change the output direction
of the sound by the reproduction signal, and the sound field having a sense of reality can be
easily set. be able to. DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the
speaker apparatus of the present invention will be described with reference to FIG. In FIG. 1, (1)
shows the entire speaker device, and the speaker device (1) is provided with a circular through
hole (2a) on the front face of the box-shaped cabinet (2). ) Is a speaker unit (3) comprising a
cone-shaped speaker or the like. Then, in the speaker device (1) of this example, the reflector (4)
is disposed so as to cover the front surface of the speaker unit (3). The reflector (4) is a flat plate
made of metal or the like, and the shaft part (4 龜) sinks up and down. The reflector (4) is
mounted on the arm (5) by supporting the shaft component (4a) on the tip of the arm (5)
attached and projected above and below the through hole (2a) of the cabinet (2). It is attached. In
addition, a reflector rotation mechanism component (not shown) including a motor is built in one
of the upper and lower arms (5), and the reflector (4) is rotated by supplying a drive current to
the motor. It is configured to do. The motor of this rotation mechanism component is connected
by a remote control signal receiver (6) and a signal cable (7) provided separately from the
cabinet (2), this receiver (6) The drive current is supplied from a battery or the like provided
inside the The receiver (6) has an infrared signal receiver (6a) and an operation key (6b), and the
operation of the operation key (6b) controls the supply of drive current. In addition, by operating
the operation key (8a) of the remote control signal transmitter (8) provided separately from this
receiver (6), an infrared signal is emitted from this transmitter (8), and this infrared signal is
Reception @ When receiving by the infrared signal receiver (6a) of (6), the drive current of the
motor is supplied from the receiver (6). The speaker device of this example is configured as
described above, and for example, by connecting to the audio signal output terminal of the
amplifier device of the speaker unit (3) radio stereo reproduction device (not shown), the
reproduction of this audio signal is performed. Be
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In the speaker device (1) of one example, since the reflector (4) is rotatably disposed, the output
direction of the sound by the reproduction signal can be changed. That is, by operating the
remote control transmitter (8) or the receiver (6 operation keys (8a), (6m)), the reflector (4) is
rotated to intercept the front of the speaker unit (3) Then, the reproduction signal output from
the speaker unit (3) is reflected by the reflector (4), and the sound by the reproduction signal
does not directly go to the front of the speaker device (1). Then, by rotating the sill-free lid (4) by
operating the operation keys (6m) and (8m), it is possible to change the reflection direction of
the sound by this reproduction signal. As described above, according to the speaker device (1) of
this example, the reflector (4) is turned by remote control by the remote control signal
transmitter (8), so, for example, two left and right speaker devices (1) are prepared The so-called
stereo reproduction in which the left signal and the right signal are output from each speaker
device (1) can be performed, and the remote control signal transmitter (8) is operated at a
distance from the speaker device (1) By rotating the reflector (4), it is possible to confirm the
change of the sound field according to the change of the output direction of the sound due to the
reproduction signal (change of the turning position of the reflector (4)) at this listening position.
As described above, since the sound field can be changed while confirming it directly with the
ear, if it is rotated to a position where the most realistic sound field can be obtained, stereo
reproduction with a sense of winding can be easily performed. In addition, even when the
listening position changes, the remote control signal transmitter (8) can be used to easily turn the
reflector (4) to the position where reflection is most appropriate for the desired position, which is
easy. It can be formed on a good sound field. The reflector may be, for example, as shown in FIG.
2, a mounting digit reflector (9) which can be opened and closed by a hinge portion (9a) beside
the through hole (2a) containing the speaker unit (3). Also in this case, the reflector (9) is opened
and closed by a drive mechanism component such as a motor 9 housed in a cabinet (2), for
example, and the output direction of the voice is changed by the opening angle. Also, as shown in
this second round, the remote control signal receiver αQ may be integrated into the cabinet (2).
Also, as shown in FIG. 3, a reflector (l-axis shaft part (l1m) is attached to the upper part of the
through hole (2a) so as to protrude from the cabinet (2a), and drive around this shaft part (l1m)
The angular position of the reflector α may be changed by mechanical components.
Also in this case, the output direction of the sound changes due to the change of the angular
position of the reflector α force. Further, as shown in FIG. 4, the reflector α → may be provided
in the speaker device CI in which the speaker unit (3) is attached to the upper surface (13 m) of
the cabinet (2). In this case, for example, an annular frame aη may be provided around the
speaker unit (3) so as to be rotatably disposed by a pivot mechanism, and the reflector α ◆ may
be fixed on this frame (G) . このようにすることで。 By the rotation of the annular frame (g), the
angular position of the reflector α ◆ changes, and the output direction of the sound changes. In
addition, an arm (5) supporting a reflector (4) as shown in FIG. 1 may be attached to such an
annular frame (G) and inclined. Furthermore, it goes without saying that the present invention is
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not limited to the above-described embodiment and that various other configurations can be
taken without departing from the scope of the present invention. [Effect of the Invention]
According to the speaker device of the present invention, the speaker device is separated from or
sunning? It is possible to turn the reflector (4) to change the output direction of the sound by the
reproduction signal while checking the sound field by means of distortion, and there is an
advantage that the sound field having a sense of presence can be easily set.
[0002]
Brief description of the drawings
[0003]
FIG. 1 is a perspective view showing an example of a speaker apparatus according to the present
invention, and FIGS. 2 to 4 are perspective views showing a modification of the embodiment.
(1) is a speaker device, (2) is a cabinet, (3) is a speaker unit, (4) is a reflector, (6) is a remote
control signal receiver, and (8) is a remote control left signal transmitter.
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