KR100691534B1 - Karaoke system having multi-channel amp - Google Patents

Abstract

The disclosed invention relates to a karaoke period having a multi-channel amplifier for clearly outputting a voice of a singer by separately providing a channel for reproducing a voice and a channel for reproducing a voice. A microphone which is output when the signal input from the outside is a voice signal of a user and is removed when the signal is output through a speaker; And an amplifier for outputting a voice signal input through the microphone to a center speaker, a bass signal to a subwoofer, and a music signal to be output to the front and rear speakers.

Song cycle, multi-channel, amplifier, dedicated channel for voice playback

Description

Song group cycle with multichannel amplifier {KARAOKE SYSTEM HAVING MULTI-CHANNEL AMP}

1 is a block diagram schematically showing the configuration of a song cycle according to the prior art;

FIG. 2 is a block diagram illustrating a configuration of supporting a multi-channel amplifier in a song period to which the present invention is applied.

*** Explanation of symbols for the main parts of the drawing ***

100: microphone

110, 120: first and second amplification unit 130: howling removal unit

200: amplifier

210: tone control unit 220: surround signal generator

230, 260: first and second synthesis sections 240, 270: third and fourth amplifier sections

250: echo sound generating unit 280: low sound output unit

The present invention relates to a song cycle having a multichannel amplifier.

More specifically, the present invention relates to a karaoke cycle having a multi-channel amplifier for clearly outputting a voice of a singer by providing a channel for reproducing a voice and a channel for reproducing a bass.

In general, the basic structure of the song half cycle includes a panel unit 10 for allowing a user to select an operation state of a song half cycle, such as a selection song, a storage unit 30 storing an operation program of the song half cycle, and a plurality of MIDI data. The MIDI data storage unit 40, the MIDI processing unit 60 for converting the MIDI data input from the MIDI data storage unit 40 into a music signal in response to a control signal input from the outside, and the storage unit ( A control unit 50 for controlling the entire system according to the operation program of 30) and outputting the corresponding MIDI data to the MIDI processing unit 60 in response to the selection signal input through the panel unit 10; An audio signal for amplifying a signal input from a channel and a plurality of signals input from the MIDI processor 60 and outputting the amplified audio signal to the speaker 80. It consists of a rib (70).

At this time, the audio signal processing unit 70 is implemented separately from the music recording period as an amplifier.

The audio signal processor 70 receives a user's voice signal provided through a microphone, mixes a music signal input from the MIDI processor 60, and outputs the mixed voice signal through the speaker 80.

At this time, the audio signal processor 70, although not shown in the drawings, means for adjusting the echo, balance, tone, and volume of the signal input through the microphone, and means for controlling the tone of the signal input from the MIDI processor 60. It is further provided.

However, in the general karaoke cycle as described above, the sound processed in the karaoke cycle is sinusoidal, and the user's voice input through the microphone includes a lot of overtones, so the intermodulation distortion (third harmonic) increases rapidly. There is a problem that the voice of the voice is not clear, and thus the echo sound is masked to the music signal so that it is hard to hear.

In addition, the general karaoke cycle has a problem that the howling phenomenon is aggravated because the microphone and the speaker are in the same space, and the user's voice output through the speaker is not clearly heard.

In addition, a general karaoke cycle has a problem that loud and irritating sounds are output due to severe distortion at a large volume. In other words, the loudspeaker's diaphragm vibrates back and forth to produce a bass sound. At this time, the distortion rate is greatly increased, and when the frequency is played at the same time as the sound is higher, a large distortion is generated.

Accordingly, the present invention has been made in response to the above development demands, and an object of the present invention is to provide a dedicated channel for reproducing only a user's voice and to separate it from other channels so that echo sounds are masked to a music signal and thus difficult to hear. It is to provide a singing cycle with a multi-channel amplifier to solve.

In addition, another object of the present invention is to provide a karaoke cycle having a multi-channel that can prevent the howling phenomenon by removing one signal when the same signal is input to the microphone at the same time.

In addition, another object of the present invention is to provide a vocal music cycle having a multi-channel which can prevent the phenomenon that the distortion of the speaker increases when outputting the bass by providing a dedicated bass playback channel that can play only bass.

In order to achieve the above object, an embodiment of the present invention, in the karaoke cycle, a microphone for outputting when the signal input from the outside is a user's voice signal, if the signal output through the speaker; And an amplifier for outputting a voice signal input through the microphone to the center speaker, a bass signal to the subwoofer, and a music signal to the front and rear speakers. To provide a half cycle.

The microphone may include first and second amplifiers for amplifying a voice signal input through the microphone and receiving an audio signal output through a speaker; And a howling for outputting the input signal when a predetermined signal is input to any one of the first and second amplifying units, when the same signal is input through the first and second amplifying units. Removal unit; To provide a song cycle having a multi-channel amplifier, characterized in that consisting of.

The amplifier may further include: a tone controller configured to adjust the tone of the signal input through the microphone to have a preset tone; A surround signal generator which generates a surround signal and synthesizes the audio signal inputted from the tone control unit, the music signal inputted from the singing cycle period, and the generated surround signal; An echo sound generator for generating an echo signal and synthesizing the echo signal and the echo signal inputted from the tone control unit and outputting the echo signal; A first synthesizer configured to synthesize a signal output from the surround signal generator and a music signal input from the song period; A second synthesizer configured to synthesize a signal output from the echo sound generator and a voice signal input through a microphone; A bass output unit configured to extract only a bass level among the signals inputted from the first combining unit and the second combining unit to output to the subwoofer; A fourth amplifier for amplifying and outputting a user's voice signal output through the first synthesizer to a center speaker; And a third amplifier configured to amplify the music signal synthesized with the reverberation output through the second synthesizer and output the amplified music signal to the rear speaker and the front speaker.

In addition, the audio signal input to the surround signal generator is to provide a music recording period having a multi-channel amplifier, characterized in that the reverberation.

Hereinafter, a song cycle having the multi-channel amplifier of the present invention will be described.

First, as shown in FIG. 2, when the signal input from the outside is a voice signal of the user, the microphone 100 is output when the signal is output through the speaker and the microphone 100 is input. The audio signal is output to the center speaker 320, the bass signal is output to the subwoofer 310, the music signal is composed of an amplifier 200 to be output to the front and rear speakers (340, 330). .

The microphone 100 amplifies a voice signal input through the microphone, and receives first and second amplifiers 110 and 120 that receive an audio signal output through a speaker. 2 When the same signal is input through the amplifying unit 110, 120 When a predetermined signal is input to any one of the first and second amplifying unit 110, 120 without outputting an audio signal It is composed of a howling removal unit 130 for outputting the input signal.

In addition, the amplifier 200 generates a surround signal and a tone control unit 210 for adjusting the tone of the signal input through the microphone 100 to have a preset tone, and from the tone control unit 210 A surround signal generator 220 for synthesizing and outputting the music signal inputted from the input voice signal and the singing cycle period and the generated surround signal, and generating an echo signal, and inputting the voice signal from the tone control unit 210. And an echo sound generator 250 for synthesizing and outputting an echo signal, a first synthesizer 230 for synthesizing and outputting a signal output from the surround signal generator 220 and a music signal input from a song cycle period; A second synthesizer 260 for synthesizing and outputting a signal output from the echo sound generator 250 and a voice signal input through the microphone 100, and the first synthesizer and the second synthesizer 230. Input from 260 The rear speaker 330 and the front by amplifying the bass output unit 280 to extract only the bass level of the signal to the subwoofer 310 and the user's audio signal output through the first synthesis unit 230 The third amplifier 240 outputs to the speaker 340, and the fourth amplifier 270 to amplify the microphone signal and the echo sound output through the second synthesizer 260 to output to the center speaker 320 It is composed of

At this time, the audio signal input to the surround signal generator 220 is smaller than the original sound and has a reverberation of 30 msec or less.

The operation of the song cycle having a multi-channel amplifier configured as described above is as follows.

First, when the user selects a song, the MIDI data is converted into a music signal and input to the first synthesizing unit 230, as described in the conventional song recording period.

In addition, the first synthesizer 230 receives the reverberation from the surround signal generator 220 and synthesizes the reverberation with the music signal to output to the third amplifier 240 and the bass output unit 280.

Then, the third amplifier 240 amplifies the music signal synthesized with the reverberation and outputs it to the rear speaker 330 and the front speaker 340, and the bass output unit 280 is a bass sound from the music signal synthesized with the reverberation. Only the portion is filtered and output through the subwoofer 310.

In addition, when the user sings using a microphone according to the music signal, the voice signal input through the microphone 100 is input through the first amplifier 110 to adjust the tone through the howling remover 130. It is input to the unit 210.

The tone control unit 210 adjusts the tone of the voice signal of the user and outputs the tone to the echo sound generator 250. The echo sound generator 250 adds an echo sound corresponding to the voice signal and outputs the echo sound to the second synthesizer 260.

The second synthesizer 260 synthesizes an externally input voice signal (microphone signal) and the echo sound and outputs the echo signal to the fourth amplifier 270 and the bass output unit 280.

The fourth amplifier 270 amplifies the voice signal synthesized with the echo sound and outputs it through the center speaker 320, and the bass output unit 280 filters the voice signal synthesized with the echo sound and only the bass portion. Output through the subwoofer 310.

In this case, the echo is a signal having the same magnitude as that of the original sound and is called an echo when the time difference is 30 msec or more, and the reverberation is called a reverberation when the echo is smaller than the original sound and less than 30 msec.

On the other hand, the microphone 100 is provided with two amplification unit, as described above, the first amplification unit 110 receives and amplifies only the user's voice signal and outputs to the howling removal unit 130, the second amplification The unit 120 amplifies only the signal output through the speaker and outputs it to the howling removal unit 130. In this case, the howling remover 130 does not output any signal to the output terminal when the same signal is input through the first amplifier 110 and the second amplifier 120 at the same time. Outputs the signal to the tone control unit 210. By implementing as described above it is possible to prevent the howling phenomenon.

The invention described above is not limited to the embodiments described above, and various modifications and changes can be made by those skilled in the art, which are included in the spirit and scope of the invention as defined in the appended claims.

As described above, the present invention provides an exclusive channel for reproducing only a user's voice and separates it from other channels, thereby solving the problem of echo sound being masked by a music signal.

In addition, the present invention has the effect of preventing the howling phenomenon by removing one signal when the same signal is input to the microphone at the same time.

In addition, the present invention has the effect of preventing the phenomenon that the distortion of the speaker increases when outputting the bass by providing a channel dedicated to bass reproduction that can reproduce only bass.

In addition, the present invention is mainly implemented to reproduce the echo sound in the voice-only playback channel, so that only the reverberation can be reproduced in the remaining speakers, so that the part that could not control the echo and reverberation uniformly in the conventional singing cycle period It works.

Claims (4)

In the singing cycle, Amplifying a voice signal input through the microphone, and outputs an audio signal when the same signal is input through the first and second amplifiers receiving the audio signal output through the speaker and the first and second amplifiers. Instead, it comprises a howling eliminator which outputs the input signal when a predetermined signal is input to any one of the first and second amplifying units, and outputs when the signal input from the outside is a user's voice signal. A microphone for removing the signal output through the speaker; And A tone control unit for adjusting a tone of a signal input through the microphone to have a preset tone, a surround signal, a voice signal input from the tone control unit, a music signal input from a song cycle, and the generated surround A surround signal generator for synthesizing and outputting a signal, an echo sound generator for generating an echo signal, synthesizing and outputting an audio signal and an echo signal input from the tone control unit, and a signal output from the surround signal generator And a first synthesizing unit for synthesizing and outputting a music signal input from the singing cycle period, a second synthesizing unit for synthesizing and outputting a signal output from the echo sound generator and a voice signal input through a microphone, Low bass output, which extracts only the bass level among the signals input from the first synthesizer and the second synthesizer, and outputs it to the subwoofer And a fourth amplifier for amplifying a user's voice signal output through the first synthesizer and outputting the voice signal to the center speaker, and amplifying a music signal synthesized with the reverberation output through the second synthesizer. An amplifier configured to output a speaker to the center speaker, the voice signal input through the microphone to the center speaker, the bass signal to the subwoofer, and a music signal to the front and real speakers; Song cycle with a multi-channel amplifier, characterized in that configured to include. delete delete The audio signal input to the surround signal generator, Song cycle with multichannel amplifier, characterized in that reverberation.

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