JP2002369296A - Mixing system having function of inspecting microphone line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mixing system, by which a person in charge of sound can inspect a line of microphone even by himself and also can inspect the line of microphone, even in actual telecast or in performance. SOLUTION: A detection signal generated by a detection signal generator 11 is collected by a normal voice signal by a diaphragm film 12, and is inputted into a voice table 2 through a microphone line 3. A microphone line detecting section 21 of the voice table 21 has a preset signal identical to the detecting signal, determines whether or not an inputted signal contains this signal and displays the result on a line state display section 22. The inputted signal is subjected to a determining processing and an ultrasonic part (detecting signal included) is removed by a detection signal removing section 23, only the normal voice signal is inputted into a signal control circuit 24, a level is set on the inputted signal, and the inputted signal is transmitted through a transmission line 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mixing system for synthesizing and outputting audio signals collected by a plurality of microphones.

[0002]

2. Description of the Related Art Conventionally, in a mixing system used for recording a broadcast program or performing on a stage, as a method of inspecting a microphone line, a sound person on the stage speaks directly to a microphone or touches a windshield. A voice signal is input to the microphone, and the voice operator of the voice console checks the voice signal with a speaker or headphones to confirm that there is no abnormality in the line from the microphone to the voice console.

In addition, during the actual recording of a program or during the stage performance, it is impossible to raise the fader to check the microphone line. Is being inspected.

In either method, the microphone line is inspected by actually hearing the sound picked up by the microphone.

[0005]

However, in such a conventional method for testing a microphone line, since the distance between the microphone and the voice console is large, the input of the voice signal to the microphone and the input voice signal There was a problem that it was not possible for one person to confirm, and several people were required.

[0006] There is also a problem that a microphone line cannot be easily inspected during a production or a performance.

[0007] Therefore, the present invention provides a mixing system in which one person in charge of voice can check the microphone line, and can easily check the microphone line even during a production or performance. The purpose is to provide.

[0008]

Means for Solving the Problems A first method for solving the above problems is described below.
The present invention provides a mixing system comprising: a plurality of microphones; and a voice console that connects the plurality of microphones and synthesizes and outputs audio signals collected by the microphones. To
A test signal generator for generating a test signal is provided, and a microphone line test unit for testing whether or not the signal collected by the microphone includes the test signal is provided in the voice console.

According to the present invention, the microphone line inspection unit checks whether the inspection signal generated by the inspection signal generator is included in the signal collected by the microphone.

A second aspect of the present invention for solving the above-mentioned problem is characterized in that, in addition to the configuration of the first aspect, the test signal generator generates a signal outside an audible band as the test signal. is there.

In the present invention, a signal outside the audible band is generated as a test signal, and the microphone line test section checks whether the test signal is included in a signal collected by the microphone.

According to a third aspect of the present invention, in addition to the configuration of the second aspect, a test signal removing unit for removing a signal outside the audible band from the signal which has been tested by the microphone line test unit is provided. It is characterized by having.

According to the present invention, a signal obtained by removing a signal outside the audible band from a signal collected by the microphone is synthesized.

According to a fourth aspect of the present invention, in addition to the configuration of any one of the first to third aspects, the test signal generator is provided near a diaphragm of the microphone. Is what you do.

According to the present invention, the test signal generated by the test signal generator is reliably collected by the diaphragm of the microphone.

A fifth aspect of the present invention for solving the above-mentioned problems is characterized in that, in addition to the configuration of any one of the first to fourth aspects of the present invention, a line status display unit for displaying a test result of the microphone line test unit is provided. It is assumed that.

According to the present invention, the inspection result of the microphone line inspection unit is displayed by the line status display unit.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 and 2 are views showing a mixing system according to an embodiment of the present invention.

In FIG. 1, the mixing system includes a microphone 1, a voice console 2, and a microphone line 3. A voice signal input to the microphone 1 is input to the voice console 2 through the microphone line 3, Voice Desk 2
And the level is set and transmitted to the transmission line 4.

The microphone 1 is provided with a test signal generator 11 for generating a signal outside the audible band (for example, an ultrasonic wave of 20 kHz or more) in the vicinity of a diaphragm 12 which collects sound and converts it into an electric signal. I have. Note that the frequency of the generated signal is set so as not to deviate significantly from the band frequency of the microphone 1 in consideration of a usable band based on the frequency characteristics of the microphone 1.

The voice console 2 includes a microphone line inspection unit 2
1, a line status display unit 22, a test signal removal unit 23, and a signal control circuit 24. As shown in FIG. 2, a plurality of microphones 1a to 1d can be connected to the voice console 2, and a microphone line inspection unit 21, a line status display unit 22, a test signal removal unit corresponding to each of the microphones 1a to 1d. A section 23 and a signal control circuit 24 are provided.

The microphone line inspection section 21 applies the inspection signal generator 1 to the signal input through the microphone line 3.
It is to check whether or not the signal (check signal) in which 1 is generated is included, and the check result is displayed on the line status display unit 22.

The test signal removing section 23 removes the signal generated by the test signal generator 11 from the input signal and outputs only a normal audio signal.

The signal control circuit 24 sets the level of an audio signal as provided in a conventional audio console.

In such a mixing system,
The inspection signal generated by the inspection signal generator 11 is collected by the diaphragm 12 together with a normal audio signal, and is input to the audio console 2 through the microphone line 3.

In the voice console 2, the input signal is input to the microphone line inspection unit 21. The microphone line inspection unit 21 sets the same signal as the inspection signal in advance, and determines whether or not the input signal includes this signal. If the same signal as the preset signal is included in the input signal, it is determined to be normal, and the line status display unit 22
Is displayed normally (for example, lighting of a lamp).

If the same signal as the preset signal is not included in the input signal, it is determined that an abnormality has occurred, and an alarm is displayed on the line status display unit 22 (for example, a blinking lamp).
I do. In FIG. 2, the lamp of the line status display section 22c blinks, indicating that an abnormality has occurred in the microphone line 3c.

After the input signal is subjected to the judgment processing, it is directly input to the test signal removing section 23. The test signal removing unit 23 removes an ultrasonic portion (including a test signal) of the input signal and outputs only a normal audio signal.

The audio signal output from the test signal removing section 23 is input to the signal control circuit 24, the level of which is set, and transmitted via the transmission line 4.

As described above, in the present embodiment, the test signal generated by the test signal generator 11 of the microphone 1 is
Since the microphone line inspection unit 21 of the voice console 2 detects and determines the functions of the microphone 1 and the microphone line 3, only the person in charge of the voice of the voice console 2 uses the microphone 1.
And the microphone line 3 can be inspected.

Since the test signal generated by the test signal generator 11 is out of the audible band, the microphone 1 and the microphone line 3 can be tested even during the actual recording of the program or during the stage performance. .

Further, since the test signal is removed by the test signal removing section 23 and only a normal audio signal is output, an extra signal other than the audio signal can be removed.

Further, since the test signal generator 11 is provided near the diaphragm 12 of the microphone 1, the test signal generated by the test signal generator 11 is collected well by the diaphragm 12 and the accuracy of the test is improved. Can be improved.

Further, since the status of the microphone 1 and the microphone line 3 is displayed on the line status display section 22, the status of the microphone 1 and the microphone line 3 can be visually grasped.

[0035]

According to the present invention, the test signal is generated by the test signal generator, and the microphone line test section checks whether the test signal is collected by the microphone and transmitted to the voice console. Only the voice operator operating the desk can check the microphone line.

If the inspection signal is a signal outside the audible band, the microphone line can be inspected without disturbing the audio signal in the audible band. Can be inspected.

If the test signal is removed from the signal after the test, an extra signal can be removed and only the audio signal can be obtained.

Further, if the test signal generator is installed near the diaphragm of the microphone, the test signal can be reliably collected by the microphone, and the accuracy of the test can be improved.

If the inspection result of the microphone line inspection section is displayed, the status of the microphone line can be easily grasped.

[Brief description of the drawings]

FIG. 1 is a schematic block diagram showing a mixing system according to an embodiment of the present invention.

FIG. 2 is a top view showing a mixing system according to an embodiment of the present invention.

[Explanation of symbols]

 1, 1a-1d Microphone 11 Test signal generator 12 Vibration membrane 2 Voice console 21 Microphone line inspection unit 22, 22a-22d Line status display unit 23 Test signal removal unit 24 Signal control circuit 3, 3a-3d Microphone line 4 Sending line

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Akira Morita 1-10-11 Kinuta, Setagaya-ku, Tokyo Japan Broadcasting Corporation Broadcasting Research Institute F-term (reference) 2G036 AA06 BA19 CA00 5D020 BB00

Claims (5)

[Claims] 1. A mixing system comprising: a plurality of microphones; and a voice console that connects the plurality of microphones and synthesizes and outputs audio signals collected by the microphones. A test signal generator for generating a test signal, and a microphone line test unit for testing whether the test signal is included in a signal collected by the microphone is provided in the voice console. . 2. The mixing system according to claim 1, wherein the test signal generator generates a signal outside an audible band as the test signal. 3. The mixing system according to claim 2, further comprising a test signal removing unit that removes a signal outside the audible band from the signal that has been tested by the microphone line test unit. 4. The mixing system according to claim 1, wherein said test signal generator is provided near a diaphragm of said microphone. 5. The mixing system according to claim 1, further comprising a line status display unit for displaying an inspection result of said microphone line inspection unit.