KR20040106984A - Apparatus and Method for controling playing of Optical Disk - Google Patents

Abstract

PURPOSE: A reproduction control device and a method of a karaoke optical disk are provided to extract voice data to compare the extracted data with karaoke data, and to output a singer's voice for incorrect word parts through a speaker, thereby correcting a tone in comparison with the singer's voice. CONSTITUTION: A device analyzes voice features to compare the analyzed features with a reference word model, and recognizes voice data(S11). The device compares voice data extracted from a voice recognizer with stored word data(S12). The device detects incorrect word parts, and stores the detected data in a memory as detection data having position information of the incorrect word parts(S13). If a user wants to output a singer's voice(S20), a microcomputer produces the singer's voice corresponding to the incorrect word parts by outputting a singer's voice signal through a speaker(S21). If the user requests an accompaniment again for a previous incorrect song(S30), the singer's voice is read for the incorrect word parts.

Description

Apparatus and Method for controling playing of Optical Disk}

The present invention relates to an apparatus and method for controlling playback of a karaoke optical disc, and more particularly, to output accompaniment and lyrics using karaoke data (MIDI and lyrics data) stored in a recording medium, and to input audio signals through a microphone. In the song accompaniment apparatus which calculates scores by comparing with the music recording apparatus, it detects wrong lyrics part when accompaniment of songs by using voice recognition means, and plays back control of karaoke optical disc capable of reproducing mantissa voices for wrong lyrics parts through control means after song accompaniment. An apparatus and method are provided.

1 is a general configuration diagram of a reproducing apparatus for a karaoke optical disc which performs a song accompaniment function, comprising: a pickup section 10 for detecting a recording signal from the surface of the disc; A motor (M) for rotating the disk; A drive unit 11 driving the pickup unit 10 and the motor M; An R / F unit 12 for filtering the signal detected by the pickup unit 10; The servo unit 20 controls the driving of the drive unit 11 from the output signal of the R / F unit 12 and the rotational speed of the disc, and detects the synchronization of the output signal of the R / F unit 12. ; The digital signal processor 30 recovers the signal read out by the R / F unit 12 into a digital signal by using the detected synchronization, and then restores the original video compressed data or karaoke data (MIDI and lyrics data). ; An MPEG unit 40 for decoding the restored video compressed data; A memory 50 for storing MIDI data and lyrics data for music accompaniment of the restored song; A sound source ROM (60) in which sound source data corresponding to MIDI data is recorded; A sound source output unit 70 which receives MIDI data stored in the memory 50 and reads and outputs sound source data recorded in the sound source ROM 60; An on-screen display (OSD) 80 for converting and outputting lyrics data stored in the memory 50 into a video text signal; An A / D converter 111 for converting and outputting sound of a user input through a microphone Mic into digital data; And a microcomputer (MICOM) 100 for calculating a score of the converted user song based on the output time of the sound source output unit 70 of the accompaniment data of the memory 50.

In the video CD half-cycle configured as described above, when the user selects a song list by key input, the micom 100 reads the playlist information of the MIDI CD already read and stored in the memory 50. After controlling the drive unit 11 to move the pickup unit 10 to the corresponding track, the karaoke data of the song list selected from the karaoke data (MIDI and lyrics data) information area on the MIDI device is transferred to the pickup unit 10. The high frequency signal to be detected is filtered by the R / F unit 12. The filtered clean signal is a synchronization signal detected by the servo unit 20, the digital signal processing unit 30 is the karaoke data from the filtered signal by the synchronization signal detected by the servo unit 20 It is restored to be stored in the memory 50 under the control of the microcomputer (100).

Thereafter, when the user requests a song accompaniment, the microcomputer 100 controls the drive unit 11 to move the pickup unit 10 to the image information area on the MIDI device, and the same process as described above. The image data detected by the digital signal processing unit 30 and restored by the digital signal processor 30 is transmitted to the MPEG unit 40, and the image data transmitted to the MPEG unit 40 is decoded and output as a video signal. Will begin to output.

Meanwhile, the MIDI data transmitted and stored by the microcomputer 100 to the memory 50 is input to the sound source output unit 70, and the sound source output unit 70 receives sound source data corresponding to the input MIDI data. The accompaniment is performed by retrieving each sound source by searching in the ROM 60, and the on-screen display 80 displays the time (output time) in the MIDI data stored in the memory 50 by the microcomputer 100. And converts the lyrics input according to the video signal into a video text signal, and converts the lyrics into a color signal of the text. The signal is synthesized with the video signal decoded and output by the MPEG unit 40. The progress of the lyrics is displayed in the background image.

By the above-described process, the user sings the song for the selected song in accompaniment while watching the video and the row of artists. During this process, the microcomputer 100 is input through a microphone and the A / D converter 111 is performed. In this way, the score is calculated by comparing the intensity of the user's sound converted to digital data with the time and height of the sound being read out based on the beat (output time) in the MIDI data in the memory 50. The score is calculated until the accompaniment for a song is finished, and after the completion of the song, the score is input to the on-screen display 80 so that the synthesized output is output together with a background image. I noticed the score.

However, in the song accompaniment apparatus that outputs accompaniment and lyrics using the karaoke data (MIDI and lyrics data) as described above, and calculates scores by comparing the voice signal input through a microphone, the user can use the calculated score as a whole. You can know your singing ability, but you can't adjust the music to which part is not good because of the weakness, especially the accompaniment sound. It is not possible to know which part of the sound is vulnerable, and there is a problem in that one song is played as a whole and unnecessary time is wasted in singing practice.

Therefore, the present invention, which was created to solve the above problems, extracts voice data by voice recognition means, and compares the extracted voice data with karaoke data to determine a wrong song part. Providing a reproducing control apparatus of a karaoke optical disc capable of correcting the pitch by singing the song compared to the singer voice by outputting the singer voice of the wrong song portion from the singer voice data added to the karaoke data recorded on the recording medium through the speaker. For that purpose,

In addition, the present invention compares the voice signal and the MIDI data inputted through the microphone and the MIDI data, and compares the voice data and lyrics data extracted by voice recognition, discriminates and stores wrong song portions, and then the user's mantissa. When the request for re-accompaniment for the output request or the correction of the pitch is performed, the singer voice for the wrong song part is read out and reproduced in the singer voice data added to the karaoke data, so that the pitch can be corrected by comparing with the singer voice. Its purpose is to provide a playback control method for karaoke optical discs.

1 shows a general configuration of a playback apparatus for a karaoke optical disc that performs song accompaniment,

2 shows a part of a configuration of a playback control apparatus for a karaoke optical disc according to the present invention,

3 shows a codebook of country recognition speech for extracting speech data in a playback control apparatus of a karaoke optical disc according to the present invention;

4 is a flowchart illustrating an operation of a reproduction control method by the reproduction control apparatus of the karaoke optical disc according to the present invention.

※ Explanation of code for main part of drawing

M: motor

10: pick-up section 11: drive section

12: R / F part 20: servo part

30: digital signal processing unit 40: MPEG unit

41: Demux 42: MPEG Audio Decoder

43: MPEG video decoder 45: audio output unit

50: memory 60: sound source ROM (MIDI ROM)

80: On-Screen Display (OSD) 70: Sound Source Output

100: MICOM 110: voice recognition unit

111: A / D converter 112: voice information extraction unit

120: comparator 130: speaker

The apparatus for controlling playback of a karaoke optical disc according to the present invention for achieving the above object, to output accompaniment and lyrics using the karaoke data, and to the song accompaniment apparatus to calculate the score compared to the audio signal input through the microphone A voice recognition means for extracting and recognizing voice features from the microphone voice signal; Comparison means for comparing the voice data extracted by the voice recognition means with the karaoke data and outputting detection data having information of a portion corresponding to a wrong song; And determining the wrong song part with reference to the detection data. And reproducing control means for reading and outputting the mantissa voice for the wrong song portion from the mantissa voice data added to the karaoke data through a voice output unit.

In addition, the playback control method of the karaoke optical disc according to the present invention is a song accompaniment method for outputting accompaniment and lyrics using karaoke data, and calculating the score compared to the voice signal input through a microphone, the voice signal is a voice Comparing the karaoke data with speech data extracted by recognition; Detecting a part corresponding to a wrong song from the karaoke data and storing the detected part as detection data having position information of the wrong song part; When there is a request for reproducing a singer tone of the user, the method may include three steps of reading and reproducing the mantissa voice for the wrong song part from the mantissa voice data added to the karaoke data with reference to the detection data.

In the apparatus and method for controlling playback of a karaoke optical disc according to the present invention as described above, karaoke data configured according to the MIdI standard is recorded on a recording medium such as an optical disc, and accompaniment and lyrics are output by using karaoke data read out through the recording medium. Do it.

In the apparatus and method for reproducing and controlling a karaoke optical disc according to an embodiment of the present invention, the karaoke data recorded on the recording medium is, for example, MIDI data for accompaniment, and lyrics data for outputting lyrics characters as an image. Words data, Synchronous data for simultaneous output of accompaniment and lyrics, and PIC data other than the accompaniment and lyrics contents, as well as mantissa voice data for reading and outputting the mantissa voice (Singer Voice data) is configured.

Hereinafter, a preferred embodiment of an apparatus and method for controlling playback of a karaoke optical disc according to the present invention will be described in detail with reference to the accompanying drawings.

2 shows a part of a configuration of a playback control apparatus for a karaoke optical disc according to the present invention, and FIG. 3 shows a code book of speech recognition for obtaining voice information in the playback control apparatus for a karaoke optical disc according to the present invention. As shown, the disk, the pick-up section 10, the motor M, the drive 11, the R / F 12, the servo section 20, the on-screen display (OSD) are already omitted and are omitted from the drawings. Let's do it.

Then, in the audio output means, the original video compressed data or karaoke data (MIDI and lyrics data), mantissa voice compressed data, or video after recovering the signal read out by the R / F unit 12 into a digital signal A digital signal processor 30 which restores the compressed data; An MPEG unit 40 for decoding the reconstructed moving picture compressed data and mantissa voice data; A voice output unit 45 for outputting the decoded mantissa data to a speaker by D / A conversion; A memory 50 for storing MIDI data and lyrics data for music accompaniment of the restored song; A sound source ROM (60) in which sound source data corresponding to MIDI data is recorded; A sound source output unit 70 which receives MIDI data stored in the memory 50 and reads and outputs sound source data recorded in the sound source ROM 60; An A / D converter 111 for converting and outputting a user's sound input through a microphone (Mic) into digital data; And a microcomputer (MICOM) 100 for calculating a score of the converted user song based on the output time of the sound source output unit 70 of the accompaniment data of the memory 50.

On the other hand, the audio output means comprises a voice recognition unit that is a voice recognition means, the voice recognition unit 110, an A / D converter for converting the microphone voice signal into digital voice data, and the A By comparing the extracted voice information and lyrics data with the voice information extracting unit 112 for collecting voice information of the voice signal for extracting information required for voice recognition from the digital data converted and output by the / D converter. And a comparator 120 for outputting a detection signal.

In addition, by the above-described process, the user sings a song for the selected song in accompaniment while watching the video and the row of artists, and during this process, the microcomputer 100 is input through a microphone and the A / D The voice recognition unit 112 is extracted by extracting one or more codebooks individually set as country-specific voice characteristics among the voice change code of the user converted into digital data by the converter 111 and the voice recognition codebook stored in the memory 50. After analyzing the voice characteristics. The most similar lyrics information is extracted into the recognized speech data compared with the model of the reference word to be recognized.

In addition, the microcomputer inputs the recognized voice data to the comparator 120 to compare the lyrics data stored in the memory with the voice data extracted by the voice extractor to detect wrong lyrics. The lyrics are detected until the accompaniment to the song is finished.

On the other hand, during the detection operation, the microcomputer 100 is input through a microphone (Mic) and the intensity change of the sound of the user is converted into digital data in the A / D converter 111 and the MIDI in the memory 50 Based on the time signature (output time) in the data, the wrong pitch and time signature are detected as compared with the time point at which the reading and output are performed.

In addition, the microcomputer 100 determines the wrong song part by referring to the wrong lyrics, the wrong pitch, and the beat detected by the comparison unit, and outputs the detected data having the location information of the wrong song part on the singer voice data. The detection data is stored in the memory 50.

After the user's request to play the mantissa sound, the microcomputer controls the drive unit 11 from the information of the wrong song portion stored in the memory 50 in the above-described process, and the pickup unit 10 controls the drive unit 11. Is moved to the singer voice information area corresponding to the wrong song portion on the CD, and the singe voice data which is detected by the same process as described above and restored by the digital signal processor 30 is transmitted to the MPEG unit 40. The human voice data transmitted to the MPEG unit 40 is transmitted to the MPP audio decoder 42 by the demux 41, decoded, and output to the speaker as a human voice signal through the voice output unit 45. Make sure that the singer voice for the wrong part comes out.

On the other hand, when the mantissa voice signal corresponding to the wrong song portion is output. MIDI data of the wrong song portion transmitted and stored by the microcomputer 100 to the memory 50 is input to the sound source output unit 70, and the sound source output unit 70 receives sound source data corresponding to the input MIDI data. The sound source ROM 60 outputs the respective sound sources to enable accompaniment.

For reference, the on-screen display 80 converts and outputs the lyrics input by the microcomputer 100 according to the time signature (output time) in the MIDI data stored in the memory 50 as a video text signal. The lyrics are converted into a color signal separately from the text color signal in progress and outputted.

In addition, even when the user requests the accompaniment of the previously wrong song again, the above-described process is performed, and the MIDI data of the wrong song portion transmitted and stored by the microcomputer 100 to the memory 50 is output. Inputted to the sound source, and the sound source output unit 70 retrieves the sound source ROM 60 and outputs and reproduces each sound source. At the same time, the microcomputer outputs a corresponding mantissa voice of a wrong song part through the above-described process. The signal is output to the speaker 130 through the voice output unit 45.

4 is an operation flowchart of a playback control method by the playback control apparatus for a karaoke optical disc according to the present invention, which is input through a microphone (Mic) to the voice recognition means and is input by the A / D converter 111. After extracting one codebook individually set as a country-specific voice characteristic among the intensity change value and the voice recognition codebook of the user's voice converted into digital data, and analyzing the voice characteristic through the voice recognition extractor 112. Compared with the model of the reference word to be recognized, it is recognized as the voice data that is the most similar lyrics information (S11).

In addition to comparing the digitized microphone voice signal with the MIDI data, the voice data extracted from the voice recognition means and the lyrics data stored in the memory are compared.

Then, by detecting the part corresponding to the wrong song from the karaoke data, the microcomputer determines the wrong song part and stores it in the memory as detection data having position information of the wrong song part (S13).

On the other hand, if there is a user's request for outputting the mantissa sound (S20), the microcomputer controls the drive unit 11 from the information of the wrong song portion of the detection data stored in the memory 50, so that the pickup unit ( 10) is moved to the singer voice information area corresponding to the wrong song part on the disc, detects the singer information data corresponding to the wrong song part, and the singe voice data restored by the digital signal processor 30 is the MPEG part 40. ), And the mantissa voice data transmitted to the MPEG unit 40 is transmitted to the MPP audio decoder 42 by the demux 41 and decoded, and is a speaker as a mantissa voice signal through the voice output unit 45. By outputting to the singer voice corresponding to the wrong part will be output. (S21)

On the other hand, when the user re-accompaniment of the previously wrong song (S30), in addition to performing the accompaniment sound reproduction of the song, when playing the accompaniment sound corresponding to the wrong song portion, stored in the memory 50 Read and reproduce the singer voice of the wrong song part from the singer voice data added to the karaoke data according to the detected data of the wrong song part, so that the accompaniment corresponding to the wrong sound during the previous song is outputted. Make sure the voice of the singer that corresponds to the wrong song part is heard.

For reference, in the case of the mantissa voice data which is compressed and stored in the recording medium on the CD according to the date and time of the present invention. When decoding is required to restore the mantissa voice data, but the mantissa voice data is not compressed, the voice output means may be used without the decoding means to perform the above object.

As mentioned above, preferred embodiments of the present invention described above are disclosed for the purpose of illustration, and those skilled in the art can improve other various embodiments within the spirit and technical scope of the present invention disclosed in the appended claims below. Changes, substitutions or additions will be possible.

The apparatus and method for controlling playback of a karaoke optical disc according to the present invention constituted and constructed as described above comprises a song accompaniment apparatus for outputting accompaniment and lyrics using karaoke data, and calculating a score by comparing with a voice signal input through a microphone; In the method, the voice signal is inputted to a voice recognition means, and the extracted voice data is compared with the karaoke data to detect a portion corresponding to a wrong song from the karaoke data, and the detection data having position information of the wrong song portion. After storing the user's request to play the mantissa sound, by reading and reproducing the mantissa voice for the wrong song part from the mantissa voice data added to the karaoke data with reference to the detection data, To adjust the pitch so that you can practice again with the mantissa. In addition, it is possible to minimize the unnecessary time wasted for singing practice, the user is also a very useful invention that can further improve the singing skills.

Claims (2)

In the song accompaniment device for outputting accompaniment and lyrics using the karaoke data, and calculating the score by comparing the voice signal input through the microphone, Voice recognition means for extracting and recognizing voice features from the microphone voice signal; Comparison means for comparing the voice data extracted by the voice recognition means with the karaoke data and outputting detection data having information of a portion corresponding to a wrong song; And The wrong song portion is determined by referring to the detection data. And reproducing control means for reproducing and outputting a mantissa voice for the wrong song portion from the mantissa voice data added to the karaoke data through a voice output unit. A reproduction control apparatus for a karaoke optical disc, characterized by storing detection data having position information of a wrong song portion on audio data in a memory. In the song accompaniment method for outputting accompaniment and lyrics using karaoke data, and calculating the score by comparing the voice signal input through the microphone, Comparing the karaoke data with the voice data extracted from the voice signal by voice recognition; Detecting a portion corresponding to a wrong song from the karaoke data and storing the detected portion as detection data having position information of the wrong song portion; And a step of reading and reproducing the mantissa voice for the wrong song part from the mantissa voice data added to the karaoke data when there is a request for reproducing the mantissa sound of the user. Regenerative control method of optical disc.