JP3141075

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DESCRIPTION JP3141075
Abstract: The present invention uses the physical characteristics of the speaker itself to produce
an acoustic effect due to a change in directivity. SOLUTION: In the present invention, movable
plates are installed at the top, bottom, left, and right of a single speaker or a plurality of speakers,
and directivity is changed by combining a control device of a plate by an electronic circuit and a
motor and various input devices. An acoustic effect can be obtained by [Selected figure] Figure 1
Variable directional speaker
[0001]
The present invention relates to a speaker provided with a plate for changing the directivity to a
general existing speaker.
[0002]
In order to obtain an acoustic effect, the waveform of the sound source is changed using an
electronic device or the like.
However, software-like acoustic effects using conventional electronic devices and the like can not
realistically change the range that can be heard by the listener.
[0003]
03-05-2019
1
It provides new effects using physical characteristics of change in directivity, which can not be
obtained with current software-dependent sound effects.
[0004]
Install movable plates on the top, bottom, left, and right of the speaker unit to change the
directivity of the speaker.
Then, each board is controlled according to the application, and an acoustic effect is produced.
[0005]
It becomes possible to change directivity like a spotlight, which was impossible with conventional
speakers
[0006]
By changing the directivity, it is possible to realistically express the direction in which the sound
comes in and the sense of movement of the sound, so it is possible to obtain a more natural
sound effect and presence compared to the electronic sound effect. .
[0007]
FIG. 1 is an external view of the device of the present invention seen from the front.
This device outputs sound from a speaker disposed at the center, and moves the boards A to D
vertically and horizontally to change directivity.
Then, the board installed in the speaker is controlled in accordance with the signal from the
manual input device, the voice recognition device, the image recognition device, etc., to produce
an acoustic effect.
[0008]
03-05-2019
2
The following description is all based on FIG. 1 viewed from the front. (1) To increase the
directivity in the upward direction, move the A and C plates together in the upward direction.
Conversely, in order to increase directivity in the downward direction, the A and C plates are
moved downward. (2) To increase the directivity in the left direction, move the B and D plates
together in the left direction. Conversely, to increase the directivity in the right direction, both
the B and D plates are moved in the right direction. By combining both (1) and (2), it is possible
to obtain a change in the audible range accompanied by a change in directivity and an acoustic
effect.
[0009]
By combining the speaker, the control device, the manual operation device or the automatic
operation device, and the sound source as shown in FIG. 3, it is possible to obtain an acoustic
effect accompanying a change in directivity.
[0010]
When using this speaker at a live venue etc., install an arbitrary number of speakers according to
the size of the scale.
Therefore, the audio signal of the part to which an acoustic effect is to be added is input to the
speaker. Then, a manual signal or an automatic signal is input to the control device only when an
effect is applied, and an acoustic effect is obtained by moving the plate of the speaker. As a
result, the listener can obtain a realistic sense of movement of sound.
[0011]
By combining the microphone (not shown), the speaker, the control device and the voice
recognition device as shown in FIG. 4, it is possible to make a conference call at a remote place
more naturally. The structure in the speaker device is as shown in FIG. 5 and is configured of a
speaker for a person sitting on top and a speaker for a person sitting on the bottom. The
following three items are specific examples based on the configuration of FIG.
03-05-2019
3
[0012]
If Pe1 at point I wants to talk to Pe10 at point J, Pe1 says the name of the person he wants to
talk to first, like "Mr. Pe10, your opinion". The voice recognition device installed at J point
recognizes the call and sends a signal to the control device so that the control device can control
the motor installed in the lower speaker and listen to Mr. Pe10 mainly Control the directivity.
[0013]
When Pe5 of point I wants to talk to Pe7 and Pe8 of point J, Pe5 calls for both parties who want
to talk first like "Pe7, Pe8, what are yours". The speech recognition device installed at point J
recognizes the word and transmits a signal to the control device, and the control device controls
the motor installed in the upper speaker, mainly to both Pe7 and Pe8. Control directivity as you
hear from the Lord.
[0014]
When Pe5 of point I wants to talk to Pe7 and Pe12 of point J, Pe5 calls for both parties who want
to talk first like "Pe7, Pe12, what are yours". The voice recognition device installed at the J point
recognizes the call and transmits a signal to the control device installed at the J point, and the
control device controls the motor installed in the upper and lower speakers. Control the
directivity so that you can hear mainly to both Pe7 and Pe12.
[0015]
In addition, the upper speaker does not output sound when talking to the lower participant only,
and the lower speaker does not output sound when talking to the upper participant conversely.
[0016]
By combining the speaker, the control device, the image recognition device, and the sound source
as shown in FIG. 6, it is possible to make the advertisement on the street more impressive.
[0017]
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4
Specifically, as shown in FIG. 7, the speaker is installed in the store.
Then, an image recognition device is used to recognize human movement.
When the passerby moves P1 → P2 →
changed so that the sound follows a person.
P3
by linking the two, the directivity may be
[0018]
By combining the speaker, the control device, the image recognition device, and the sound source
as shown in FIG. 6, it is possible to realize a system that supports evacuation of a visually
impaired person in an emergency.
[0019]
Specifically, as shown in FIG. 8, when guiding a person in
are used.
P1
to
H
, speakers x1 and x2
And with the camera installed in "P4", the directivity is raised to "P1" while recognizing a person.
After that, while announcing "to move forward", the audible range is gradually changed according
to the walking speed of the person, such as "P2" → "P3" → "P4".
[0020]
When a person comes to the P4 position, it announces turning to the left to advance in
the H direction. As soon as it is confirmed that it has turned to the "H" direction, "forward"
will be announced again from the y1 and y2 speakers, and the audible range will change
according to the walking speed of the person from "P7" to "P8" I will let you.
[0021]
By performing these processes a plurality of times, it becomes possible to guide the visually
impaired person by sound and evacuate to the target location.
03-05-2019
5
[0022]
1 is a front view showing an embodiment of a variable directional speaker according to the
present invention.
It is the figure which explained Example 0011. FIG. 16 is a block diagram describing an
embodiment 0009. FIG. 10 is a block diagram for explaining an embodiment 0011. It is the
figure which explained Example 0011. FIG. 6 is a block diagram illustrating embodiments 0016
and 0018. It is the figure which explained Example 0016. It is the figure which described
Example 0019.
Explanation of sign
[0023]
A Direction control upper plate B Direction control left plate C Direction control lower plate D
directivity control right plate SP Speaker Pe1 point I conference participant Pe5 point I
conference participant Pe7 point J conference participant Person Pe8 Point J conference
participant Pe10 Point J conference participant Pe12 Point J conference participant P4 Camera
installation location x1 variable directional speaker x2 variable directional speaker y1 variable
directional speaker y2 variable directional speaker
03-05-2019
6

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