JPH06318087A - Method and device for controlling sound for stage - Google Patents

Abstract

PURPOSE:To provide method and device for automatically moving a sound image while following up the movement of a talker. CONSTITUTION:Plural speakers 2 are arranged in lines in the width direction of a stage 1, and a microphone 4 with a pulse oscillator incorporated is possessed by the talker on the stage, and the position of the pulse oscillator is detected, and then, the speaker corresponding to the position of the pulse oscillator among plural speakers 2 is operated. On the stage 1, a position sensor 5 receiving an ultrasonic pulse and detecting the position of the talker, and a sound source position computer 7 calculating the position of the talker by a synchronizing signal from a pulse generator 6 and a signal from the position sensor 5 are provided, and the speaker of the position corresponding to the talker is operated by the output of the computer 7. Thus, since the position of the talker matches with the sound image nearly, the unnaturalness that both of them are separated from each other is dissolved, and the method is executed automatically without manual aid, and can deal with many talkers also.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stage sound control method and apparatus.

[0002]

2. Description of the Related Art Conventionally, when performing loudspeaking on a stage, a speaker b such as an actor or a singer on a stage a has a wireless microphone c as shown in FIG. 1, and a voice signal from this is shown in FIG. Thus, the sound is emitted from the speakers g on both sides of the stage via the receiver d, the mixer e, and the amplifier f.

[0003]

In the above case, unless special processing is performed, the position of the sound image (where the sound is heard) in the passenger seat is the center position of the stage shown by the dotted line in FIG. Therefore, even if the speaker b moves, the position of the sound image remains at the center of the stage, which causes unnaturalness during the loud voice. The mixer e has a built-in function of distributing the sound image called a pan pot to the left and right, and if this is manually operated, the speaker b
Although it is possible to move the sound image following the movement of, it is only possible to rely on intuition to determine the amount of movement, and it is not possible to follow when a large number of speakers move at once.

It is an object of the present invention to provide a method and apparatus for automatically moving a sound image following the movement of a speaker.

[0005]

According to the present invention, a plurality of speakers are arranged in a row in the width direction of a stage, and a speaker on the stage is made to carry a microphone having a pulse transmitter therein. The above object is achieved by a method of detecting the position of the machine and operating the speaker corresponding to the position among the plurality of speakers. The row-shaped speakers are provided in front of and behind the stage, and may be arranged above the stage if necessary, and the position of the pulse transmitter is determined by position sensors provided at the front, rear, left and right of the stage. It is detected, and if necessary, detected by a position sensor provided above the stage. In the above method, each of a plurality of speakers arranged in a row in the width direction of the stage is connected to a speaker switching device, and the speaker switching device is connected to a receiver from a wireless microphone carried by a speaker on the stage. , The microphone is provided with a function to oscillate an ultrasonic pulse by receiving a pulse from a pulse generator, the stage is provided with a position sensor for receiving the ultrasonic pulse to detect the position of the speaker, A sound source position calculator that calculates the position of the speaker based on the synchronization signal from the position sensor and the signal from the position sensor, and the device that operates the speaker at the position corresponding to the speaker by the output of the calculator is convenient. Can be implemented.

[0006]

When a speaker moves on the stage, the position of the speaker is detected by a pulse signal from a microphone carried by the speaker, and the signal is used to detect the position of the speaker among a plurality of speakers arranged in a row in the width direction of the stage. Since the speaker at the position corresponding to the position of the speaker is activated, the sound image moves as the speaker moves,
You can get a loud sound that is close to nature. By arranging speakers in rows in front of, behind, and even above the stage, even if the position of the speaker moves up, down, left, or right, the speaker corresponding to the position of the speaker in each speaker array. Can be activated to more accurately match the position of the speaker and the position of the sound image.

The position of the speaker is detected by receiving a signal from a pulse generator, emitting ultrasonic pulses from a wireless microphone carried by the speaker, and inputting a sound source position calculator to a position sensor connected thereto. Of the ultrasonic pulse and the synchronizing signal from the pulse generator, the sound source computer determines which speaker is to be activated and automatically activates it.

[0008]

Embodiments of the present invention will be described with reference to the drawings.
In FIG. 2, reference numeral 1 denotes a theater stage, and a plurality of speakers 2 are arranged in rows in front of and behind the stage 1, respectively, and the three corners of the stage 1 and one stage above the stage 1 are placed on the stage 1. The position sensor 5 for detecting the position of the wireless microphone 4 carried by the speaker is provided. The wireless microphone 4 having a function of oscillating an ultrasonic pulse is used, and when receiving a synchronization signal from a pulse generator 6 provided outside the stage 1, the ultrasonic wave for identifying a sound source position from the microphone 4 is used. Emits a pulse. The ultrasonic pulses are generated by the position sensors 5 installed at three points which are not on the same plane of the stage 1.
a, 5b, 5c, 5d. The position sensor 5 and the pulse generator 6 are connected to a sound source position calculator 7, and a signal from each position sensor 5 that has received an ultrasonic pulse at the same time as the synchronization signal from the pulse generator 6 is input from each sensor 5. The two-dimensional or three-dimensional position of the microphone 4 is calculated by the time delay (distance) of the signal of.

A voice signal from the microphone 4 is input to a receiver 8 connected to a speaker switch 11 via a mixer 9 and an amplifier 10. The speaker switching device 11 is controlled by the sound source position calculator 7, and the microphone 4
The speaker 2 closest to the microphone 4 corresponding to the position is selected and activated. In the illustrated example, the signal from the sound source position calculator 7 is also input to the mixer 9 to control the sound level according to the position of the sound source.

According to the apparatus having the above structure, when the speaker moves left and right together with the microphone 4, the sound source position calculator 7
Then, the time delay of the synchronizing signal input from the pulse generator 6 and the ultrasonic pulse input from the position sensor 5 is calculated, and which speaker 2 in which the audio signal from the microphone 4 is arranged in a row in a row is amplified. Then, the speaker switch 11 is operated. For example, the sound source position calculator 7 switches the speaker switch 11 so that the position sensor 5 with the smallest time delay is selected and the speaker 2 closest to this is activated. As a result, the sound image approaches the speaker's position, and the unnaturalness of the speaker's position and the sound image becoming inconsistent is eliminated. Further, when the speaker moves back and forth, it can be adapted by changing the output of the speakers 2 arranged in front of or behind the stage 1.

For example, when there is a speaker (microphone) at the (instep) position on the stage 1, a sound is generated from the speaker 2 near the broken line (a). When this speaker moves to the position of (B) on the stage 1, the speaker 2 which operates sequentially is moved to the vicinity of the broken line (B) according to the movement of the speaker. If a sound image is required in a three-dimensional place, a plurality of similar speakers are provided in a row above the stage 1, and the speaker switch 11 controls the sound image to raise the sound image upward. Can be moved. Further, when there are a plurality of speakers, it is possible to deal with the problem by oscillating ultrasonic pulses having different frequencies from the respective microphones 4, so that the number of persons is not limited.

[0012]

As described above, according to the present invention, a plurality of speakers are arranged in a row in the width direction of the stage, and a speaker is made to carry a microphone with a built-in pulse transmitter. Since the position is detected and the speaker corresponding to the position among the plurality of speakers is operated, there is an effect that the unnaturalness in which the position of the speaker and the sound image are substantially matched and the two are dissociated is eliminated. This method has the effects of being able to be automatically implemented without the need for human labor by adopting the configuration described in claim 4 and to deal with a large number of speakers.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of a conventional example.

FIG. 2 is an explanatory diagram of an embodiment of the present invention.

[Explanation of symbols]

1 Stage 2 Speaker 4 Wireless Microphone 5, 5a, 5b, 5c, 5d, Position Sensor 6 Pulse Generator 7 Sound Source Position Calculator 8 Receiver 9 Mixer 10 Amplifier 11 Speaker Switcher

Claims (5)

[Claims] 1. A plurality of speakers are arranged in a row in the width direction of the stage, and a speaker on the stage is caused to carry a microphone with a built-in pulse transmitter, and the position of the pulse transmitter is detected to detect the position of the microphone. A sound control method for stage, comprising activating a speaker corresponding to the position among a plurality of speakers. 2. The acoustic control method for a stage according to claim 1, wherein the row-shaped speakers are provided in front of and behind the stage, and are arranged above the stage as necessary. 3. The position of the pulse transmitter is detected by position sensors provided on the front, rear, left and right sides of the stage, and further detected by position sensors provided above the stage if necessary. The sound control method for stage as described in. 4. A plurality of speakers arranged in a row in the width direction of the stage are connected to a speaker switching device, and the speaker switching device is connected to a receiver from a wireless microphone carried by a speaker on the stage. , The microphone is provided with a function to oscillate an ultrasonic pulse by receiving a pulse from a pulse generator, the stage is provided with a position sensor for receiving the ultrasonic pulse to detect the position of the speaker, A stage sound characterized in that a sound source position calculator that calculates the position of the speaker based on the synchronization signal from the position sensor and the signal from the position sensor is provided, and the speaker at the position corresponding to the speaker is operated by the output of the calculator. Control device. 5. The stage sound according to claim 4, wherein the speaker changer is connected to the receiver through an amplifier and a mixer, and the mixer is also controlled by an output from the sound source position calculator. Control device.