KR20030093868A - Karaoke using audio multi-channel - Google Patents

Abstract

PURPOSE: A music accompaniment device in the audio multi-channel type is provided to carry out signal processing by distinguishing signals input from main and sub microphones, thereby precisely calculating the scores obtained by a singer using the main microphone. CONSTITUTION: A music accompaniment device in the audio multi-channel type includes a microphone signal processing part(30), an audio signal processing part(40), and a main control part(20). The microphone signal processing part selectively outputs the singing sounds of users respectively input via a plurality of microphones(MIC1-MIC3). The audio signal processing part selectively outputs the music sounds of the respective microphones via right and left speakers(L,R), right and left surround speakers(SR,SL), a central speaker(C), a low band sound playing sub woofer speaker(SW). The main control part controls the microphone signal processing part and the audio signal processing part selectively and calculates the scores of singers input via a predetermined one among the plurality of microphones.

Description

Song accompaniment device using audio multichannel method {Karaoke using audio multi-channel}

The present invention relates to a song accommodating apparatus using an audio multi-channel method for processing a main microphone signal and a sub microphone signal separately and outputting a plurality of microphone signals to a speaker of a desired channel.

In general, the song accommodating device accesses and outputs a recording medium in which a plurality of songs are stored as MIDI (Musical Instrument Digital Interface) files according to a user's song selection, and at the same time, a user's song voice is input through a plurality of microphones. Output to the speaker of the designated channel.

At this time, the song accommodating device is to distinguish between the voices of the multiple users input through a plurality of microphones and to simply mix and output the song voices of the user who originally selected the song will interfere with the song sounds of other users. Clearly, there is a problem that it is difficult to calculate the song score correctly.

In addition, the conventional song accompaniment device simply mixes the accompaniment music by the MIDI file and the user's song voice, and outputs the same regardless of the number of speakers, so that the characteristics of the low and high ranges to be emphasized for each song are not properly saved. Of course, there is a problem that does not increase the sense of presence of the sound as a whole very monotonous.

The present invention was created to solve the above problems, and the object of the present invention is to accurately calculate the song score of a user who uses the main microphone by distinguishing the main microphone signal from the sub microphone signal.

In addition, another object of the present invention is to increase the presence of sound by selectively outputting a plurality of microphone signals to a speaker of a corresponding channel.

1 conceptually illustrates a configuration of a song accompaniment apparatus using an audio multi-channel method according to the present invention.

Figure 2 shows a detailed configuration of the song accompaniment apparatus using an audio multi-channel method according to the present invention.

※ Explanation of code for main part of drawing

20: main control unit 30: microphone signal processing unit

40: audio signal processor 201: CD / DVD controller

202: Acoustic IC203: Multiplexer

204: signal processing processor 205: score calculation

206: font ROM 207: code memory

208 MIDI synthesizer 209 Audio signal processor

210: video signal processor 211: panel

In order to achieve the above object, a song accompaniment apparatus using an audio multi-channel method according to the present invention includes a song accompaniment apparatus for outputting accompaniment of a selected song according to a user's key input; Signal processing means for separately setting a main microphone input signal and a sub microphone input signal among a plurality of microphone input signals, and separately processing the main microphone audio signal and the sub microphone audio signal; And score calculation means for calculating a song score by comparing the signal-processed main microphone audio signal with the accompaniment sound of the selected song.

In addition, the present invention is a song accompaniment device for outputting the accompaniment of the selected song according to the user's key input, the main microphone audio signal of the plurality of microphone input signal and sub-mic input signal is set separately, respectively, the main microphone audio signal And signal processing means for processing individual signals into sub microphone audio signals; And signal output means for separately outputting the signal-processed main microphone audio signal and the sub microphone audio signal to different preset speakers.

Hereinafter, the configuration and operation of a preferred embodiment of a song accompaniment apparatus using an audio multi-channel method according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view illustrating a concept of a song accompaniment apparatus using an audio multi-channel method according to the present invention. The microphone signal processor selectively outputs a user's singing sound input through a plurality of microphones MIC1, MIC2, and MIC3. 30) and the sound of each microphone (MIC1, MIC2, MIC3) corresponding to the speaker of the corresponding channel, that is, the left and right stereo speakers (L, R), the left and right surround speakers (SL, SR), the center speaker (C), the low range sound The audio signal processor 40 selectively outputs to the reproduction subwoofer speaker SW, and outputs a selection control signal to the microphone signal processor 30 and the audio signal processor 40, as well as an arbitrary microphone (eg, MIC1). It is configured to include a main control unit 20 for calculating the song score for the user's song sound input through.

As described above, the present invention sets the main microphone MIC1 to display the first microphone from among the plurality of microphones MIC1, MIC2, and MIC3, and calculates and displays a song score only for the input signal of the main microphone MIC1. In addition, the input signals of the microphones MIC1, MIC2, and MIC3 are classified and output as the speakers L, R, SL, SR, C, and SW of the corresponding channel. For example, under the control of the main controller 20, the audio signal processor 40 outputs the signals of the main microphone MIC1 to the left and right stereo speakers L and R and the center speaker C, and the sub microphones MC2 and MIC3. Signal is output to the left and right surround speakers SL and SR and the subwoofer speaker SW.

FIG. 2 shows a detailed configuration of a preferred embodiment of a song accompaniment apparatus using an audio multi-channel method according to the present invention, and reads a MIDI sound source from a recording medium such as a CD, a DVD, and the like in a MIDI file format. Signal processing such as amplification, filtering, and echo of the user's song signal input from the plurality of microphones MIC1, MIC2, and MIC3, and the main microphone MIC1 based on a selection control signal. A sound IC 202 comprising a multiplexer 203 for selectively separating and outputting an input signal of the sub microphones MIC2 and MIC3 and outputs a score to the input signal of the main microphone MIC1. It includes a score calculation unit 205, the signal processing processor 204 for performing the overall control, and the font data or basic screen information for displaying the song lyrics, etc. A MIDI synthesizer for generating accompaniment sounds based on a MIDI sound source input from a signal processing processor 204, a font memory 207 for storing the code data of a song capable of accompaniment sound output, and a MIDI sound source. 208, the accompaniment sound and the singing sound of each of the microphones MIC1, MIC2, and MIC3 are converted into analog signals based on the control signal of the signal processing processor 204, and then the speakers (L, R, SL of the corresponding channel). Audio signal processing unit 209 for selectively outputting to SR, C, SW), video signal processing unit 210 for processing video signal such as video information or song score and outputting to monitor or TV receiver and user's song selection And a panel 211 for receiving a signal and displaying predetermined information.

As described above, according to the present invention, when an initial input signal is generated from an arbitrary microphone (for example, MIC1) while a CD or DVD is loaded in a deck, the signal processor 204 subsequently generates a microphone (MIC1) that generated the first input signal. ) To the main microphone (MIC1). At this time, it is preferable that the signal processing processor 204 initializes the setting conditions of the main microphone MIC1 at the end of each tune.

Subsequently, the score calculating unit 205 samples only the microphone signal input through the main microphone MIC1 under the control of the signal processing processor 204, and calculates a song score in comparison with the MIDI file of the currently playing song. When the song ends, the video signal processor 210 is controlled to display the calculated song score.

Then, the audio signal processor 209 receives the input signals of the microphones MIC1, MIC2, and MIC3 based on the control signals of the signal processor 204, and outputs the speakers L, R, SL, SR, and C of the corresponding channel. , SW).

Meanwhile, the method of setting an arbitrary microphone as the main microphone may include a main microphone setting button on the panel 211 so that the corresponding microphone may be set as the main microphone according to an external selection operation. It is also possible to implement a main mic by keeping the jack inputs of the mic fixed as main and sub.

In addition, although the present invention has been described with respect to setting one microphone as the main microphone, it is possible to set a plurality of microphones as the main microphone.

The above-described preferred embodiments of the present invention are disclosed for the purpose of illustration, and those skilled in the art can improve, change, substitute, or add various technical embodiments within the spirit and the technical scope of the present invention disclosed in the appended claims below. Etc. may be possible.

The song accompaniment apparatus using the audio multi-channel method according to the present invention configured and operated as described above can more accurately calculate a song score for a user who uses the main microphone by separately processing the input signals of the main microphone and the sub microphone. It is also a useful invention that can increase the presence of sound by enabling the output of a plurality of microphone signals to the speaker of the desired channel.

Claims (6)

In the song accompaniment device for outputting the accompaniment of the selected song in accordance with the user's key input, Signal processing means for separately setting a main microphone input signal and a sub microphone input signal among a plurality of microphone input signals, and separately processing the main microphone audio signal and the sub microphone audio signal; And And a score calculating means for calculating a song score by comparing the signal-processed main microphone audio signal with the accompaniment sound of the selected song. The method of claim 1, The signal processing means is a song accommodating device using an audio multi-channel method, characterized in that for setting the first microphone input signal of the plurality of microphone input signal to the main microphone input signal. The method of claim 1, The signal processing means is a song accommodating device using an audio multi-channel method, characterized in that for setting one microphone input signal selected by a user's key input among the plurality of microphone input signals as a main microphone input signal. . The method of claim 1, And the signal processing unit initializes the division setting of the main microphone input signal and the sub microphone input signal when the accompaniment sound of the selected song is finished. In the song accompaniment device for outputting the accompaniment of the selected song in accordance with the user's key input, Signal processing means for separately setting a main microphone input signal and a sub microphone input signal among a plurality of microphone input signals, and separately processing a main microphone audio signal and a sub microphone audio signal; And And a signal output unit configured to separately output the signal-processed main microphone audio signal and the sub microphone audio signal to different preset speakers. The method of claim 5, The signal output means outputs the main microphone audio signal through a main speaker located at the center, and separately outputs the sub microphone audio signal through sub speakers located at the periphery. Device.