JPS60131000A - Method for informing position of seat of talker in conference use public-address system to all participants - Google Patents

Abstract

PURPOSE:To recognize clearly the position of a talker seat by controlling the sound volume of speaker of each conference seat so as to inform the position of the talker seat to all participants in a conference room. CONSTITUTION:When a switch corresponding to a microphone of a talker seat on a microphone selecting panel 11 is depressed, a microphone number of a microphone is transmitted to a controller 14 via a microphone selection input/ output I/O 12. The controller 14 reads the arrangement state of microphones and speakers of all participants from a ROM15 and sets a control table where the sound volume of the speakers of the participant seats placed at the 1st outer circumferednce surrounding the speaker of the talker seats and the talker seats themselves is decreased, the sound volume of the speakers of the 2nd outer circumference is increased and the sound volumes of the speakers of the other participant seats is adjusted to a middle level.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of informing all conference participants of the position of each speaker seat in a public address system for a conference hall, which is capable of informing a large number of conference participants in the conference hall about the location of speaker seats. be.

Conventionally, when a conference is held between a large number of conference participants using a conference hall loudspeaker equipped with microphones and speakers, the loudspeaker sound from the microphones of two speakers is
It is designed so that it can be heard through speakers placed at many conference seats, but the microphone at one speaker's seat is used to listen to the speaker's amplified sound from the nine speaker seats and the speakers around each speaker's seat. This may cause feedback, so the speakers in the 9 speaker seats and the conference seats surrounding the speaker seats should be turned off, or the volume of the speakers should be lowered to prevent the above-mentioned howling. With 9
The amplified sound from the microphone at the speaker's seat was amplified at a constant volume from the many speakers of the many conference attendees.

Therefore, the amplified sound at each speaker's seat is set to VC so that it can be heard by all conference participants, but on the other hand, for many conference participants,
There are five problems with not being able to clearly identify the location of the speaker's seat.

The present invention was made in order to solve the above-mentioned conventional problem, and the amplified sound of the speaker from the microphones of the nine speaker seats is transmitted to one speaker's seat and the first speaker's seat surrounding each speaker's seat. Each speaker in the conference layer located on the outer periphery has a small size, each speaker in the conference layer located on the second outer layer has a dog size, and each speaker on the other conference layer layers has a medium size. Control the layer speaker volume.

The object of the present invention is to provide a method for informing all conference participants of the position of each speaking seat in a new public address system for a conference hall, which informs all conference participants of the position of each speaking seat.

The present invention will be explained below with reference to nine drawings. FIG. 1 is a schematic configuration diagram of an embodiment of a conference hall loudspeaker system for explaining the present invention.
MH-MIn, M21~M2n-Mml”-M
mn is microphone for each conference seat + 5o-8+n.

S21~S2n...3rr+4~Smn are microphone selection switch circuits, P11~Pln, P21~P2
n -Pm1~Pmn is each seat speaker + An~
A +n, A2s~A2n ``4m'1~Amn are amplifiers with volume control, 10 is a booster amplifier, 11 is a microphone selection panel, 12 is I1 for microphone selection input/output
0.13 is I10 for control signal input/output.

14 is a control device, and 15 is a microphone at each seat of the conference.

The RoM, which stores fixed data regarding the speaker arrangement state and the arrangement state of the volume level of each speaker when each microphone is used as the microphone for each speaking seat, and its control program, +6 selects the speaker at each selected speaking seat. It is a RAM that rearranges the arrangement state of the volume level of the speakers of each conference participant layer.

That is, as is clear from the arrangement diagram of the microphones and speakers for the conference participants in the conference hall shown in Figure 2, each conference participant layer has one microphone and one speaker. 11. Between the microphones for the most difficult conference participants. The speakers are arranged in the same way as the speakers. In this case 2, for example, microphone selection switch circuit S11 is connected to microphone Mll, and amplifier with volume control All is connected to speaker pH, and these microphone selection switch circuit SKI and amplifier with volume control Al
As shown in FIG.
, and each of the speakers P12 to Pmn is connected to a corresponding volume control amplifier A+2 to Amn, respectively, and these microphone selection switch circuits S12 to Smn
and the volume control amplifiers AI2 to Amn are connected via the above-mentioned booster amplifier IO.

Also, the amplifier with volume control Alt-A4 n, A21
~A2nAn'Il~Amn, microphone selection switch circuit S]1~S1n, S21~S2n・Sm1~sm
Each of n.

Control signal input/output I according to the control signal from the control circuit 14
1013 to be selected and operated.

Next, regarding the operation of informing all conference participants of the location of each speaking seat using the conference hall's loudspeaker system configured in this way, the fourth conference participant in the fifth row of conference participants held a microphone/M45. Let's take an example of when to make a statement.

Microphone MA for speaker layer on microphone selection board 11
When the switch corresponding to 5 is pressed, the microphone number of the microphone M45 is transmitted to the control device 14 via the microphone selection input/output l1012.

The control device 14 reads the arrangement status of microphones and speakers of all conference participants from +ROMts.

Based on the microphone number of the speaker received earlier.

As shown in FIG. 2, the speaker P45 of the speaker layer and the speakers P34 + P35 + P361P of each conference seat located on the first outer periphery surrounding the speaker layer centering on the speaker layer
44. P461P54/P55 * Reduce the volume of P56 1Speaker P of each conference seat located on the second outer periphery
23 + P 24 +P25IP261P27-P3
31P37IP43. P471P53. Pb0. P63
1P64 + P65 + P661 Set the volume of P67 to dog, and set the volume of the speakers at each conference seat to inside.
Set up a control table for each.

Also, a control table for operating the speaker layer microphone M45 is set.

The control tables for the speakers and microphones set in this manner are read out from the ROM 15 into the RAM 16 and edited, and are stored in the first table surrounding the speaker at each seat. It is created based on the volume level arrangement state of each speaker of each conference seat located on the second outer periphery and each other conference seat.

Next, the control device 14 sends a control signal for activating the microphone M45 of the speaker layer from the control signal input/output l1013 to the microphone selection switch circuit Sns, and also sends a control signal to the microphone selection switch circuit Sns for the speaker P45 of the speaker layer and each conference seat surrounding the speaker layer. Speaker P 34 + F' 35 + P 36 + P4
4 + Each control number 4W that reduces the volume of P16, P54, P55, Pb6 is connected to the amplifier with volume control A341A351A
361A441A451A461As 4. As s
+ A5s, similarly speaker P 23 + P 2
4 + P25.

P261P271P331P371P43'lP4'7
1P531P571P'631P641P651P 6
6 + P 67 volume control signal A231A24IA251A261A271 with volume control
A33IA37-A431A47 + A431A47
+A63 *A64 +A65 +A66 +A67
(9) Each control signal for controlling the volume of the speakers at each conference seat other than these is sent to the corresponding amplifier with volume control.

As a result, the voice from the microphone M45 of the speaker layer is transferred to the microphone selection switch circuit S45° booster amplifier 10. and amplifiers with volume control AIl~A1n, A
21S-A2n Am4NAmn, speaker P
341P351P361P441P451P46. P5
41P551P56 volume is low, speaker P 23
+ P 24 + P 25 + P 26 * P
27, P 33 IP371P431P47. P53
．． P571P63. P641P65. The volumes of P66 and P67 are controlled by the dog, and the volumes of the other speakers are controlled by the dog. In this case, the volume of the cauldron speaker is adjusted and output to the level that causes the howling, and the output level of each of these speakers and the howling status value in the conference hall are written in R, OM]5 and revised. be done.

Therefore, the pH of each speaker at each seat in the conference hall ~ Pan
+P21~P2n...Prr+4~Pmn, the volume of the speakers surrounding the speaker group centered on the 9th speaker's seat is small, but the speakers surrounding Subikawo with this small volume are as loud as a dog, and furthermore. Many other speakers surrounding the loud speaker form a donut shape with the middle sound being 1.

Therefore, each conferee can know the speaker's position by looking at the speaker's volume.

As described above, according to the present invention, there is an advantage that the positions of the speakers in the conference hall can be easily recognized because the amplified sound of the speakers is heard from an area at a higher level from the perspective of each conference member. .

[Brief explanation of the drawing]

FIGS. 1 and 2 are a schematic configuration diagram of an embodiment of a conference hall loudspeaker system for explaining the present invention, and an arrangement diagram of microphones and speakers at each meeting seat in the conference hall. Mll++Mln1M21++M2npaMrn1~Mm
n: Microphones at each conference seat PI 1 ~ PHn, P
2) ~P2n ++Pml ~PmnPmn conferee-speaker 1 ~Sln, S21 ~S2n...smlSm
n: Microphone selection switch circuit AIl~A1n
, A2] ~A2n-Am4~Amn: Amplifier with volume control 10: Puuster amplifier, 11: Microphone selection board. 12: Microphone selection input/output I10, 13: Control signal input/output I10, 14': Control circuit, 15:
ROM. 16:RAM0 Applicant Japan Radio Co., Ltd.

Claims (1)

[Claims] One microphone connected to one microphone selection switch circuit and one speaker connected to one amplifier with volume control are installed for each conference seat, and the microphone at each conference seat is installed at each conference seat. In a conference hall loudspeaker system configured in such a manner that a selection switch circuit and an amplifier with volume control are connected via one booster amplifier, the microphone of any speaker at the conference seats should be operated (
a microphone selection means for selecting; a control means for receiving microphone number information selected by the microphone selection means and selectively controlling operation or non-operation of the amplifier with volume control and the microphone selection switch circuit; and an arbitrary speaker. storage means for storing the arrangement state of each conference seat with a medium lb., and the control means receives microphone number information of the speaker selected by the microphone selection means and selects the speaker. The arrangement state of the microphones and speakers at each center conference seat is read out from the storage means, and only the microphone at the speaker's seat in the center is activated, and the speaker volume of the speaker and the speaker volume of the speaker are in the middle). As a result, the volume of each speaker of the conference seats located on the first outer periphery surrounding the speaker is set to low, the volume of each speaker of the conference seats located on the second outer periphery is set to low, and the volume of the speakers of the conference seats located on the second outer periphery is set to low. In a public address system for conference halls, the microphone selection switch circuit and the amplifier with volume control are operated so that the volume of each speaker is medium, and the position of the speaker is notified to all conference participants. How to inform all conference participants of the speaker's location.