KR200171115Y1 - A sound system for processing sound signals - Google Patents

Abstract

The present invention relates to an acoustic signal processing system that outputs sound at a high quality level by mixing, amplifying, distributing, adjusting, converting, suppressing, and separating acoustic signals and removing noise and feed vaccines.

The acoustic signal processing system of the present invention includes a plurality of auto microphone mixers, a plurality of line select mixers, an auto master, an automatic gain controller, a level adjuster, a matrix mixer, a limiter, a first equalizer, an acoustic signal distribution amplifier, a second equalizer, a third equalizer. Equalizer and signal delay are compactly provided in one system, so they can be easily installed in a narrow space, and the wiring of each unit can be minimized to prevent external noise and sound signal deterioration. Not only can it be operated with a small power supply, but also easy to adjust and maintain each unit.

Description

A sound system for processing sound signals

The present invention relates to an acoustic signal processing system that outputs sound at a high quality level by mixing, amplifying, distributing, adjusting, converting, suppressing, and separating acoustic signals and removing noise and feed vaccines.

Conventionally, in order to process an acoustic signal, each unit, for example, an automatic microphone mixer, a line select mixer, a level controller, a matrix mixer, an automatic gain controller (AGC; Automatic Gain Controller), Matrix Mixer, Preamplifier, Limiter, ADA (Audio Distribution Amplifier) and Equalizer, respectively. Each device was tuned to process an audio signal.

However, in the case of processing the acoustic signal by combining each unit separately in this way, not only the wiring length between each component is long, but also the wiring length is long, so that a large installation space is required, and the power source noise or the like There are problems such as interference with the noise, noise, etc., resulting in deterioration of the quality of the acoustic signal, and noise caused by an external signal.

In addition, when processing sound signals using each unit, each unit needs an independent power source, and a large capacity power source is required, and each unit must be adjusted individually, making adjustment or control inconvenient. For this reason, there are various problems, such as dismantling the connected wiring at the time of repair, repairing, and then rewiring.

Accordingly, the present invention has been made in view of the various problems described above, and an object of the present invention is to provide an acoustic signal processing system that can be installed in a narrow space.

Another object of the present invention is to provide an acoustic signal processing system capable of minimizing the wiring connecting each unit to prevent the external noise and the level reduction of the acoustic signal.

Still another object of the present invention is to provide an acoustic signal processing system capable of operating with a small capacity power supply.

Another object of the present invention is to provide a sound signal processing system that is easy to adjust each unit and easy to maintain.

In order to achieve the above object, the present invention provides a plurality of auto microphone mixers for mixing sound signals input from at least four microphones, and a plurality of selectively mixing and receiving sound signals input from cassette decks, CD players, or LD players. A line select mixer, an auto master for receiving and managing mixed sound signals from the plurality of auto microphone mixers, an automatic gain controller for adjusting gain to maintain a constant output level of the mixed sound signals output from the auto master; And a level adjuster for adjusting the level of the output sound by receiving a mixed sound signal of a cassette deck, a CD player, or an LD player output from the plurality of line select mixers, and a microphone output from the auto master, a gain controller, and a level adjuster. The gain of the sound signal and the microphone sound signal is adjusted. A matrix mixer which receives a predetermined sound signal and an output sound level adjusted signal and mixes them into a signal under the control of a controller, a limiter which receives the mixed signal from the matrix mixer and limits the output to a predetermined level or less, and the limiter A first equalizer that receives a signal output from the tone and adjusts the tone and outputs it to a power amplifier, an acoustic signal distribution amplifier that receives and mixes the mixed signal from the matrix mixer to a predetermined level or more, and the acoustic signal distribution amplifier A second equalizer that receives a signal output from the second tone and adjusts the tone and outputs the tone to the power amplifier; a third equalizer that receives a signal output from the sound signal distribution amplifier and adjusts the tone; and a third equalizer. Power tone by adjusting tone and delaying Characterized in that and a delay control signal for outputting.

1 is a front perspective view of a state in which a unit (control board) for processing each sound is removed in an acoustic signal processing system according to an embodiment of the present invention;

2 is a schematic block diagram of an acoustic signal processing system according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

101-101n: Auto microphone mixer 103-103n: Line select mixer

105: auto master 107: automatic gain controller

109: level adjuster 110: controller

111: The matrix mixer 113: Limiter

115: first equalizer 118: sound signal distribution amplifier

120: second equalizer 122: third equalizer

124: signal delay

Next, a sound signal processing system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front perspective view of a state in which a unit (control board) for processing each sound is removed in an acoustic signal processing system according to an embodiment of the present invention, and FIG. 2 is an audio signal processing according to an embodiment of the present invention. A schematic block diagram of the system.

As shown in FIGS. 1 and 2, the acoustic signal processing system according to the present invention includes a housing 10 and a hinge on a front surface of the housing 10 to open and close the front surface of the housing 10. A headphone jack for inserting and connecting a door 20 coupled to each other, a plurality of slots 80 arranged in parallel to each other in the housing 10 to fix each unit, and a terminal fixed to a headphone (not shown) ( 30), the volume level controller 40 for adjusting the volume level output through the headphone jack 30, and the level of the sound signal input from a VTR (Video Tape Recorder) or cassette deck (described below). A pair of display means 50 for displaying a, a pair of volume adjusting means 60 for adjusting the volume of the pair of display means 50, respectively, and a main switch 70 for inputting power.

In addition, in the sound signal processing system according to the present invention, a plurality of slots 80 installed in parallel in the housing 10 include an automatic microphone mixer, a line select mixer, a level adjuster, Automatic Master, Matrix Mixer, Automatic Gain Controller (AGC), Matrix Controller, Preamplifier, Limiter, Acoustic Signal Distribution Amplifier (ADA) An Audio Distribution Amplifier, an Equalizer, and the like are inserted and fixed, and electrically connected to each other.

In other words, a plurality of auto microphone mixers 101-101n for mixing sound signals input to at least four microphones (not shown), cassette decks and compact disc (CD) players (hereinafter referred to as CD players) not shown. Or a plurality of line select mixers 103-103n for selectively mixing sound signals input from an LD (LASER Disk) player (hereinafter referred to as an LD player) and the plurality of auto microphone mixers 101-101n. An auto gain controller 107 for receiving and managing the received sound signal, an automatic gain controller 107 for adjusting gain to maintain a constant output level of the mixed sound signal output from the auto master 105, and the plurality of A level adjuster 109 for adjusting the level of the output sound by receiving the sound signal of the mixed cassette deck, CD player or LD player output from the line select mixer 103-103n, and the auto mask 105, the controller 110 receives the microphone sound signal output from the gain controller 107 and the level adjuster 109, the sound signal of which the gain of the microphone sound signal is adjusted, and the signal of which the level of the output sound is adjusted. A matrix mixer 111 for mixing the matrix signal below, a limiter 113 for receiving the matrix signal mixed in the matrix mixer 111 and limiting the output to a predetermined level or less, and outputting from the limiter 113. The first equalizer 115 receives a signal, adjusts a tone, and outputs the tone to the power amplifier 116.

In addition, the sound signal processing system according to the present invention receives the matrix signal mixed in the matrix mixer 111, the sound signal distribution amplifier 118 that amplifies and distributes a predetermined level or more, and the sound signal distribution amplifier 118 A second equalizer 120 that receives the output signal and adjusts the tone and outputs the tone to the power amplifier 119 and a tone that adjusts the tone by receiving the signal output from the sound signal distribution amplifier 118. And a third signal equalizer 122 and a signal delayer 124 for receiving a signal output by adjusting a tone from the third equalizer 122 and delaying the signal for a predetermined time and outputting the signal to the power amplifier 125. have.

In the above description, the amplifier refers to an amplifier which amplifies an acoustic signal.

Next, the operation and effects of the acoustic signal processing system according to one embodiment of the present invention configured as described above will be described.

First, equipments such as a plurality of microphones for sound output, cassette decks, VCRs, CD players, LD players, speakers, power amplifiers 119 and cassette decks for sound recording, VCRs, CD players, LD players, and power amplifiers 116, etc. After installation in an acoustic signal control room equipped with a headphone jack (30) of the sound signal processing system of the present invention, a plurality of microphones required, a plurality of microphones for sound output, cassette deck, VCR, CD player, LD player, speaker, power amplifier 119 and cassette deck for sound recording, VCR, CD player, LD player, and power amplifier 116 are fixed to each unit through jacks not shown, and then the main switch ( 70) is switched on to apply power.

In the case where the meeting is described as an example, the sound signals input to at least four microphones (not shown) are mixed in the auto microphone mixers 101-101n, and the auxiliary sound required for the meeting is a cassette deck, a CD player, or an LD. It is input to a plurality of line select mixers 103-103n through a player and optionally mixed.

The sound signals mixed by the plurality of auto microphone mixers 101-101n are input to the automaster 105 to manage output, and the output level of the mixed sound signals output from the automaster 105 is an automatic gain controller. The gain is constantly adjusted at 107, and the acoustic signals of the mixed cassette deck, CD player or LD player output from the plurality of line select mixers 103-103n are adjusted to a constant level by the level adjuster 109. It is output to the matrix mixer 111.

In the matrix mixer 111, the microphone sound signal output from the automaster 105 and the gain controller 107, the sound signal of which the gain of the microphone sound signal is adjusted, and a cassette deck, a VCR, a CD player, and an LD player are output. The signal of which the sound level is adjusted is received from the level adjuster 109 and mixed into a signal by the matrix mixer 111 under the control of the controller 110 and output.

The signal mixed in the matrix mixer 111 is output to the first equalizer 115 by limiting only a signal of a predetermined level or less in the limiter 113, and in the first equalizer 115, a tone is adjusted to adjust a tone. 116) to record on a speaker, VCR or cassette deck (not shown).

The mixed signal under the control of the controller 110 in the matrix mixer 111 is amplified and distributed over a predetermined level in the acoustic signal distribution amplifier 118 and output to the second and third equalizers 120 and 122, and the second equalizer. In operation 120, the tone is adjusted and output to the power amplifier 119, and output to the speaker, VCR, and cassette deck (not shown) connected to the power amplifier 119, and in the third equalizer 122, the tone is adjusted. By delaying the signal delay 124 by a predetermined time and outputting it to the power amplifier 125, the parallax of the sound output is prevented from occurring in a large conference hall or the like.

As described above, according to the acoustic signal processing system of the present invention, a plurality of auto microphone mixers, a plurality of line select mixers, an automaster, an automatic gain controller, a level adjuster, a matrix mixer, a limiter, a first equalizer, an acoustic signal distribution amplifier, The second equalizer, third equalizer and signal delay are compactly provided in one system, so they can be easily installed in a narrow space and the level of external noise and sound signals can be reduced by minimizing the wiring connecting each unit. It is a very practical design that can be prevented, can be operated with a small power supply, and also easy to adjust each unit, easy maintenance.

Claims (1)

A plurality of auto microphone mixers 101-101n for mixing sound signals input to at least four microphones, and a plurality of line select mixers for selectively receiving and mixing sound signals input from cassette decks, CD players, or LD players ( 103-103n, the auto master 105 which receives and manages the mixed sound signals from the plurality of auto microphone mixers 101-101n, and the output level of the mixed sound signals output from the auto master 105. Automatic gain controller 107 that adjusts the gain to keep it constant, and a mixed sound signal of the cassette deck, CD player, or LD player output from the plurality of line select mixers 103-103n receives the level of the output sound. The gain of the microphone sound signal and the microphone sound signal output from the level adjuster 109 to be adjusted and the automaster 105, the gain controller 107, and the level adjuster 109. A matrix mixer 111 which receives the adjusted sound signal and the level of the output sound and adjusts the signal into a signal under the control of the controller 110, and receives the mixed signal from the matrix mixer 111 and outputs a predetermined level or less. The limiter 113 outputting the output signal to the power amplifier 116 by adjusting the tone to receive the signal output from the limiter 113 and outputting the signal to the power amplifier 116. Acoustic signal distribution amplifier 118 that receives the mixed signal and amplifies and distributes a predetermined level or more, and receives a signal output from the acoustic signal distribution amplifier 118 to adjust the tone (Tone) to power amplifier 119 A second equalizer 120 for outputting the signal, a third equalizer 122 for adjusting the tone by receiving the signal output from the sound signal distribution amplifier 118, and a tone (in the third equalizer 122). Tone this adjustment Receiving a control output signal to be a predetermined time delay by the sound signal processing system characterized in that comprises a delay control signal 124 for output to power amplifier 125.