KR100258591B1 - Voice changer of karaoke optical disc player - Google Patents

Abstract

PURPOSE: An apparatus for changing a voice of an optical disk regenerator of an accompaniment device is provided to convert a voice without a noise by performing a conversion of voice by a mike using a data distributor and a mute circuit without an A/V decoder. CONSTITUTION: A main control unit(111) controls a total system of an optical disk reproducing device and a calculates data. A main memory(112) stores and outputs data of the main control unit(111). A front control unit(113) is interfaced and communicated with the main control unit(111) and a serial in/output(SIO), and controls digital/analogue converters(117, 118, 119). A front panel unit(114) displays a control result of the front control unit(113). An A/V decoder(115) receives a control of the main control unit(111) and separates and decodes audio and video signals. A decoder memory(116) transmits/receives to the A/V decoder(115), and stores and outputs decoding data. The first DAC(117) receives audio data of front L, R channels outputted from the A/V decoder(115), and converts the audio data into analogue data. The second DAC(118) receives audio data of rear L, R channels outputted from the A/V decoder(115), and converts the audio data into analogue data. The third DAC(119) receives audio data of center and sub channels outputted from the A/V decoder(115), and converts the audio data into analogue data. The first mixer(120) mixes analogue audio signals outputted from the first DAC(117), the second DAC(118) and the third DAC(119). Also, a mike(121), a mike amplification unit(122) and a mike sensor are provided. A data distributor(129) receives channel information having a voice from the front control unit(113) and transmits the information to a mute circuit. The first mute circuit(130) senses a signal outputted from the data distributor(129) and connects to an output terminal of the first DAC(117) in parallel and mutes the voice. In addition, the second and third mute circuits(131, 132), the second mixer(124), a mixer audio outputting unit(125), a video encoder(126) and a video output unit(127) are provided.

Description

Voice changer of karaoke optical disc player

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a voice change device of a karaoke optical disc player, and more particularly, to a karaoke that directly changes a voice change by a microphone using a data divider and a mute circuit without using an A / V decoder. An audio changing device of an optical disc player.

In general, an optical disc player such as a digital versatile disc player (DVDP) can reproduce data recorded on an optical disc cleanly without noise by using a laser in an optical pickup unit under the control of a controller, and its use is gradually increasing. .

In addition, there are two cases in which an audio signal is output from a DVD player, in which only two channels are output and an AC-3 5.1 channel is output. That is, 5.1 channels include two channels of front L (left) channel and R (right) channel, rear L and R channels, three channels of center channel and subwoofer (SUB-WOOFER: bass speaker) channel. This is the sum of all 0.1 channels of. 5.1-channel refers to an audio system with six speakers. This may refer to an AC-3 system, or in other words, a "Dolby Digital" system.

In the above description, the two channels mean two channels (speakers) of the front L channel and the R channel, and the remaining channels are mixed through a mixer and output to the two channels.

In the above, AC-3 stands for AUDIO COMPRESSION, which means "digital voice compression technology". When you listen to audio with 5.1 channel speaker of AC-3, it reproduces fine sound that you could not hear on CD. You can enjoy sound quality.

In addition, when a user wants to sing a song using a DVD player connected to a karaoke containing a singer's voice, it is used in two ways. First, there is a voice removal mode (MODE) which allows the voice of a singer on an optical disc to be completely removed so that the user's song voice is carried out when the user sings a song. There is a voice exchange mode in which the user's voice is carried in the voice portion of the singer only when is called.

The user is a voice change karaoke system of the optical disk player that can select and use the desired method by using a button of the two methods.

1 is a block diagram of a sound changing apparatus of a conventional karaoke optical disc player.

A main control unit 11 for controlling the entire system of the optical disc player and calculating data, a main memory 12 for storing and outputting data of the main control unit 11, the main control unit 11 and SIO (Serial In); Front panel control unit 13 for communicating with, and controlling the digital-to-analog converters 17, 18, and 19, a front panel unit 14 for displaying the control result of the front control unit 13, and An A / V decoder 15 for separating and decoding audio and video signals under the control of the main controller 11, and a decoder memory 16 for transmitting and receiving data to and from the A / V decoder 15 and storing and outputting decoding data. And a first DAC 17 that receives audio data of the front L and R channels output from the A / V decoder 15 and converts the audio data into analog data, and rear L and R output from the A / V decoder 15. The audio data of the channel is supplied and converted into analog data. A 2DAC 18, a 3DAC 19 which receives audio data of the center and subwoofer channels output from the A / V decoder 15 and converts the audio data into analog data; and the 1DAC 17 and the 2DAC 18. ) And a first mixer 20 for mixing analog audio signals output from the 3DAC 19, a microphone 21 for inputting a user's voice, and a microphone amplification for amplifying the voice signal output from the microphone 21. The unit 22, the amplified voice signal sensing (SENSING) and transmits to the front control unit 13, the amplified user's voice signal and the audio signal output from the first mixer 20 A second mixer 24 for mixing, a mixer audio output unit 25 for outputting an audio signal output from the second mixer 24, and a video for encoding a video signal separated from the A / V decoder 15 An encoder 26 and a video output unit 27 for outputting the encoded signal to the screen.

The operation principle of the voice change device of the karaoke optical disc player configured as described above is a method of instantaneously removing the singer's voice and inputting the user's voice by the signal of the voice sensor 23 when the user's voice is changed. (21) When a signal is input, the voice signal is sensed by the voice sensor 23 via the microphone amplifier 22 and input to the front control unit 13, and the input voice signal is controlled using the SIO communication. Is sent to.

The main control unit 11 instructs the A / V decoder 15 to remove a plurality of voices. As a result, the voice of the singer is removed, and the audio signal carrying the user's voice is output to the mixer audio output unit 25.

However, the user's voice is continuously input, and according to this signal, excessive load (ROAD) is increased in the main control unit 11 and the front control unit 13 and the speed is delayed between ISO communications, so that the voice of the singer remains. There was a problem that the normal voice does not change.

Accordingly, it is an object of the present invention to provide a voice change device of a karaoke optical disc player in which voice change by a microphone is directly changed by using a data divider and a mute circuit without using an A / V decoder, so that voice change is made without noise. .

1 is a block diagram of a sound changing apparatus of a conventional karaoke optical disc player.

2 is a block diagram of an audio changing apparatus of the karaoke optical disc player according to the present invention.

* Explanation of symbols for main parts of the drawings

111: main controller 112: main memory

113: front control section 114: front panel section

115: A / V decoder 116: decoder memory

117: first DAC 118: second DAC

119: 3DAC 120: the first mixer

121: microphone 122: microphone amplifier

124: second mixer 125: mixer audio output unit

128: microphone sensor 129: data distributor

130: first mute circuit 131: second mute circuit

133: third mute circuit

In order to achieve the above object, the apparatus for changing a voice of a karaoke optical disc player according to the present invention includes a main controller for controlling the entire system of the optical disc player and calculating data, a main memory for storing and outputting data of the main controller, and the main controller. A / S interface that communicates with the SIO and communicates with the front panel, controls the digital / analog converter, a front panel unit for displaying the control results of the front controller, and separates and decodes audio and video signals under the control of the main controller. A decoder memory for transmitting and receiving data to and from a V decoder, an A / V decoder, and storing and outputting decoding data, and a first DAC for receiving audio data of front L and R channels output from the A / V decoder and converting the analog data into analog data; And receive audio data of the rear L and R channels output from the A / V decoder. A second DAC for converting to analog data; a third DAC for receiving audio data of the center and subwoofer channels output from the A / V decoder; and converting the analog data into analog data; and an analog output from the first DAC, the second DAC, and the third DAC. A first mixer for mixing audio signals, a microphone to which a user's voice is input, a microphone amplifier to amplify a voice signal output from the microphone, a microphone sensor to sense and transmit a voice signal output from the microphone to the front controller; A data divider which receives the channel information including the singer's voice from the front control unit and transmits a signal to the mute circuit to change the singer's voice of the corresponding channel, and recognizes the signal output from the data divider in parallel to the output terminal of the first DAC. A first mute circuit connected to mute the mantissa voice and a signal output from the data divider A second mute circuit connected in parallel to the output terminal of the second DAC to mute the mantissa voice, a third mute circuit recognizing a signal output from the data divider and connected in parallel to the output terminal of the third DAC to mute the mantissa voice; And a second mixer for mixing the user's voice signal amplified by the microphone amplifier and the audio signal output from the first mixer, and a mixer audio output unit for outputting the audio signal output from the second mixer.

Hereinafter, a configuration and an embodiment of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram of a voice change device of the karaoke optical disc player according to the present invention.

A main control unit 111 for controlling the entire system of the optical disc player and calculating data, a main memory 112 for storing and outputting data of the main control unit 111, the main control unit 111, and SIO (Serial In). / Output) and the front panel 113 for controlling the digital-to-analog converters 117, 118, and 119, the front panel 114 for displaying the control results of the front control unit 113, and An A / V decoder 115 for separating and decoding audio and video signals under the control of the main controller 111, and a decoder memory 116 for transmitting and receiving data to and from the A / V decoder 115, and for storing and outputting decoding data. And a first DAC 117 which receives audio data of the front L and R channels output from the A / V decoder 115 and converts the audio data into analog data, and a rear L output from the A / V decoder 115. Analog data by receiving audio data of R channel A second DAC 118 for converting the data into a digital converter, a third DAC 119 for receiving audio data of the center and subwoofer channels output from the A / V decoder 115 and converting the analog data into analog data, the first DAC 117, The first mixer 120 for mixing the analog audio signals output from the second DAC 118 and the third DAC 119, the microphone 121 to which the user's voice is input, and the audio signal output from the microphone 121 The microphone amplification unit 122 for amplifying, the microphone sensor 128 for sensing and transmitting the voice signal output from the microphone 121 to the front control unit 113, and the channel information including the voice of the singer from the front control unit 113. Receives a data divider 129 for transmitting a signal to the mute circuit in order to change the mantissa voice of the channel, and recognizes the signal output from the data divider 129 is connected in parallel to the output terminal of the first DAC (117) First mu to mute singer voice A second mute circuit 131 for recognizing the signal output from the circuit 130 and the data divider 120 and connected in parallel to the output terminal of the second DAC 118 to mute the mantissa voice; A third mute circuit 132 which is connected in parallel to the output terminal of the third DAC 119 to recognize the output signal and mutes the singer's voice; and the user's voice signal amplified by the microphone amplifier 122 and the first A second mixer 124 for mixing the audio signal output from the mixer 120, a mixer audio output unit 125 for outputting the audio signal output from the second mixer 124, and the A / V decoder 115. The video encoder 126 encodes the video signal separated from the N-B) and the video output unit 127 outputs the encoded signal to the screen.

The operation principle of the voice change device of the karaoke optical disc player constructed as described above is as follows.

First, when a user's voice is input to the karaoke optical disc player through the microphone 121, the user is sensed by the microphone sensor 128 and the user's voice signal is transmitted to the front controller 113. In addition, the front control unit 113 receives the audio channel carrying the voice signal of the singer by the main control unit 111.

The front controller 113 receives the audio channel information including the voice of the singer transmitted from the main controller 111 and transmits the information about the channel to the data distributor 129 so that the user's voice signal is changed and transmitted to the corresponding channel. To pass.

The data distributor 129 recognizes the mute corresponding to the audio channel on which the singer's voice is loaded, and mutes the singer's voice by the mute circuits 130, 131, and 132 when the user's audio voice is input. At this time, the mute of the singer is muted in two ways.

First, there is a voice muting mute that completely removes the voice of the singer on the optical disc, so that the user's song voice is played when the user sings. The other is the voice of the singer on the optical disc. Only when there is a voice exchange mute method in which the user's voice is carried in the voice part of the singer. When the user selects the desired method from the two methods, the mute circuit automatically mutes the selected method.

In the last step, the first mixer 120 is mixed with another audio signal while the voice of the singer is cut off, and is outputted. Also, the voice of the user is amplified by the microphone amplifier 122 to the second mixer 124. In place of the singer's voice, the user's voice is mixed and output, and the mixed audio output is output to the speaker via the mixer audio output unit 125.

As a result, in the case of the AC-3 karaoke optical disc, the voice change function can be efficiently performed by improving the conventional method when changing the voice.

The present invention constructed and functioning as described above directly changes the voice change by the microphone without using an A / V decoder to change the voice without noise by using a data divider and a mute circuit. The speed of the ISO communication is reduced, and accurate voice change is made.

Claims (2)

A front control unit which is interfaced with and communicates with the main control unit of the karaoke optical disc player, a front panel unit which inputs an operation key to the front control unit and displays the control results, and an A / A voice changer comprising a V decoder; A microphone amplifier for amplifying the voice signal output from the microphone; A microphone sensor for sensing a voice signal output from the microphone and transmitting the detected voice signal to the front controller; A first DAC receiving audio data of front L and R channels output from the A / V decoder and converting the audio data into analog data; A second DAC receiving audio data of gear L and R channels output from the A / V decoder and converting the audio data into analog data; A third DAC receiving audio data of the center and subwoofer channels output from the A / V decoder and converting the audio data into analog data; A first mixer for mixing analog audio signals output from the first DAC, the wp2 DAC, and the third DAC; A data distributor receiving the voice information of the mantissa from the front control unit and transmitting a signal to a mute circuit; A first mute circuit which recognizes the signal output from the data distributor and is connected in parallel to the output terminal of the first DAC to mute the mantissa voice; A second mute circuit which recognizes the signal output from the data distributor and is connected in parallel to the output terminal of the second DAC to mute the mantissa voice; A third mute circuit which recognizes the signal output from the data distributor and is connected in parallel to the output terminal of the third DAC to mute the mantissa voice; A second mixer for mixing a user's voice signal amplified by the microphone amplifier and an audio signal output from the first mixer; And a mixer audio output unit configured to output an audio signal output from the second mixer. According to claim 1, wherein the front control unit has a voice removal mute control to remove the voice of the singer on the optical disk from the start point so that only the user's song voice, and the voice of the singer on the optical disk is reproduced and the user plays the song A voice change device for a karaoke optical disc player, characterized in that it has a control function of selecting a voice exchange mute control in which a user's voice is partially reproduced by being muted only when a call is made.

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