JP2011211570

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DESCRIPTION JP2011211570
The present invention provides an audio-visual reproduction system capable of more easily
confirming the arrangement angle of a speaker without forming an irradiation means in the
speaker device itself. An audio / video reproduction system according to the present embodiment
is an audio / video reproduction system having a plurality of speakers including a subwoofer
speaker, which can be operated by an operation by a remote control transmitter, wherein the
remote control transmitter is A laser emitting means for emitting a laser is provided, and the
speakers other than the subwoofer speaker are provided with a light reflecting surface for
receiving the laser from the laser emitting means on the front central axis of the speaker.
[Selected figure] Figure 1
Audio-visual reproduction system
[0001]
The present invention relates to an audio-visual reproduction system that reproduces a video
signal and an audio signal, and more particularly to a method of confirming an angular
arrangement of speakers.
[0002]
In recent years, a playback device adopting a surround function that enjoys audio and video with
a plurality of speaker systems is widely seen.
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In this case, in order to obtain accurate localization of the sound image and a surround effect, all
speakers are placed facing the user at the listening point, except for the subwoofer speakers
dedicated to the low-frequency band that do not have directivity. It is recommended to do.
[0003]
In order to realize this, for example, in the prior art document 1, a speaker adjustment device is
disclosed that includes a speaker and an irradiation unit that emits light that suggests the
radiation direction of the sound of the speaker. With such a configuration, it is possible to
visually indicate to the installer the sound pressure maximum direction in which the sound
pressure is the largest among the radiation directions of the sound of the speaker by the light
emitted from the irradiating means.
[0004]
JP 2003-284175 A
[0005]
However, in such a speaker adjustment device, the speaker device itself has to be configured with
an irradiation means, and there is a problem that the implementation is expensive.
[0006]
Therefore, in order to solve the above-mentioned problems, the present invention has an object
to provide an audiovisual reproduction system in which the arrangement angle of the speakers
can be more easily confirmed without forming the irradiation unit in the speaker device itself.
[0007]
In order to achieve the above object, the audio-visual image reproduction system of the present
invention provides a small light reflection surface parallel to the baffle surface on the front
central axis of all the speakers except the subwoofer speaker, and It is configured to incorporate
a light emitting function.
With such a configuration, it is possible to irradiate the laser from the listening point to the light
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reflecting surface and to confirm the reflected light.
Therefore, it becomes possible to confirm the arrangement angle of the speakers without
increasing the cost as compared with the conventional audiovisual reproduction system.
[0008]
According to said structure, the arrangement ¦ positioning angle of a speaker can be confirmed
by reflection of a laser beam.
[0009]
Layout drawing of audio-video reproduction system according to the first embodiment. External
view of speaker in audio-video reproduction system according to the first embodiment. External
view of remote control transmitter in audio-video reproduction system according to the first
embodiment.
[0010]
Hereinafter, a 5.1 channel surround system will be described with reference to the drawings as
an embodiment of the audio-visual reproduction system of the present invention.
Embodiment 1 FIG. 1 shows a layout of an audio-visual reproduction system according to an
embodiment.
[0011]
The audio and video reproduction system 100 reproduces a disk device (not shown), processes a
video signal and an audio signal, outputs a video signal to a monitor 108, and outputs an audio
signal to each speaker, and a center channel speaker 102, front left channel speaker 103, front
right channel speaker 104, surround left channel speaker 105, surround right channel speaker
106, subwoofer speaker 107, monitor 108, main unit and monitor The remote control
transmitter 109 has a function of remotely operating 108 and emitting a laser beam.
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For example, the laser light emitted from the remote control transmitter 109 toward the speaker
103 is emitted toward the direction A, that is, the speaker 103.
[0012]
FIG. 2 shows an external view of the front left channel speaker 103 as an example of the speaker
of the audiovisual reproduction system according to the first embodiment.
The front left channel speaker 103 is newly provided with a small light reflecting surface 110
parallel to the baffle surface on the front central axis of a normal speaker. All the speakers except
for the subwoofer speaker 107 are similarly provided with a small light reflecting surface 110
parallel to the baffle surface on the front central axis. For example, the laser light emitted from
the remote control transmitter 109 toward the speaker 103 is reflected by the light reflecting
surface 110 provided in the speaker 103, and returns toward the user having the direction B, ie,
the remote control transmitter 109.
[0013]
FIG. 3 shows the remote control transmitter 109 of the audiovisual reproduction system
according to the first embodiment.
[0014]
The remote control transmitter 109 includes a plurality of operation keys 111 for operating the
main unit 101 and the monitor 108, a transmission unit 113 for transmitting a signal
corresponding to each operation key 111, and a laser emission key 112 for operating laser
emission. The light emitting unit 114 is configured to emit a laser according to the laser emission
key 112.
[0015]
Next, the operation of the audiovisual apparatus will be described.
[0016]
When the user first presses the laser emission key 112 of the remote control transmitter 109, a
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laser beam is emitted from the laser emission unit 114.
Therefore, the user irradiates the laser light toward the light reflecting surface 110 provided in
the speaker 103.
When the speaker 103 correctly faces the user, the reflected light from the light reflecting
surface 110 is returned to the user.
In this way, the angle of the reflected light of the laser allows the user to easily check whether
the loudspeaker is facing the user.
[0017]
Here, only the case of the speaker 103 has been described, but the same is true for the other
speakers. Further, although the case of the 5.1 channel speaker arrangement has been described
here, the same can be realized in the case of two channels, 2.1 channels, and 7.1 channels.
[0018]
In addition, in Embodiment 1, although it was parallel to the small light-reflection surface baffle
surface of a speaker, it does not restrict to this. For example, the light reflecting surface may be
rotatable to a specified angle with respect to the parallel surface of the baffle of the speaker. In
this case, when the speaker 103 is installed with a reverse rotation angle by an angle specified
from the axis directly facing the user, the reflected light of the laser returns in the direction of
the user. Depending on the sound to be reproduced and the speakers used, it may be possible to
feel the localization of the sound image and the surround effect if the speakers are installed at a
specific angle from the axis facing the user. In such a case, this form is effective.
[0019]
The present invention relates to an audiovisual reproduction system that reproduces video
signals and audio signals, and more particularly to a method of confirming the angular
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arrangement of speakers, which makes it possible to simplify the speaker system without
forming the irradiation unit in the speaker apparatus itself. It is possible to provide an audiovisual reproduction system capable of confirming the arrangement angle of Therefore, the
present invention can easily determine the arrangement positions of a plurality of speakers
required in the surround system, and can be applied to easy setting of the surround system.
[0020]
DESCRIPTION OF SYMBOLS 100 audio-visual reproduction system 101 main unit 102 center
channel speaker 103 front left channel speaker 103 104 front right channel speaker 105
surround left channel speaker 106 surround right channel speaker 107 subwoofer speaker 108
monitor 109 remote control transmitter 110 light Reflective surface 111 Operation key 112
Laser light emission key 113 Operation key transmission unit 114 Laser light emission unit
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