KR20090016277A - Apparatus and method for accounting grade in semi karaoke audio device - Google Patents

Apparatus and method for accounting grade in semi karaoke audio device Download PDF

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Publication number
KR20090016277A
KR20090016277A KR1020070080800A KR20070080800A KR20090016277A KR 20090016277 A KR20090016277 A KR 20090016277A KR 1020070080800 A KR1020070080800 A KR 1020070080800A KR 20070080800 A KR20070080800 A KR 20070080800A KR 20090016277 A KR20090016277 A KR 20090016277A
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KR
South Korea
Prior art keywords
coloring
lyrics data
screen
song
semi
Prior art date
Application number
KR1020070080800A
Other languages
Korean (ko)
Inventor
박소영
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to KR1020070080800A priority Critical patent/KR20090016277A/en
Publication of KR20090016277A publication Critical patent/KR20090016277A/en

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    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H1/00—Details of electrophonic musical instruments
    • G10H1/36—Accompaniment arrangements
    • G10H1/361—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems
    • G10H1/363—Recording/reproducing of accompaniment for use with an external source, e.g. karaoke systems using optical disks, e.g. CD, CD-ROM, to store accompaniment information in digital form
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2210/00—Aspects or methods of musical processing having intrinsic musical character, i.e. involving musical theory or musical parameters or relying on musical knowledge, as applied in electrophonic musical tools or instruments
    • G10H2210/031—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal
    • G10H2210/091—Musical analysis, i.e. isolation, extraction or identification of musical elements or musical parameters from a raw acoustic signal or from an encoded audio signal for performance evaluation, i.e. judging, grading or scoring the musical qualities or faithfulness of a performance, e.g. with respect to pitch, tempo or other timings of a reference performance
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10H—ELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2220/00—Input/output interfacing specifically adapted for electrophonic musical tools or instruments
    • G10H2220/005—Non-interactive screen display of musical or status data
    • G10H2220/011—Lyrics displays, e.g. for karaoke applications

Abstract

The present invention relates to an apparatus and method for calculating a score in a semi karaoke audio device. For example, in a semi karaoke audio device in which lyrics data is produced in a background and a single screen, audio and video data of a selected song is reproduced. Signal processing to detect the coloring change of the lyrics data in the reproduced video signal, and compare the user's microphone sound with the accompaniment sound of the reproduced audio signal while the coloring change detection signal of the lyrics data is detected. When the selected song is played, the song score is output to the screen so that even the semi karaoke detects the beginning of the actual lyrics data by changing the coloring to calculate the song score, thereby providing a more reliable song score to the user. It is a very useful invention that can be.

Description

Apparatus and method for accounting grade in semi karaoke audio device}

The present invention relates to an apparatus and method for calculating a score in a semi karaoke audio device. For example, a semi karaoke audio device detects the beginning of lyrics data and calculates a song score, thereby making the song more reliable in a semi karaoke audio device. An apparatus and method for calculating a score in a semi karaoke for providing a score to a user.

Recently, the user can sing a song through a wired / wireless microphone according to an audio accompaniment sound output from a speaker while watching a video and lyrics data displayed on a screen such as a television connected to an audio device, and a karaoke function is added. Various types of audio devices have been developed and released.

The audio device (hereinafter referred to as a karaoke audio device) to which the karaoke function is added, when a user sings a microphone by referring to the lyrics data displayed on the screen according to the accompaniment sound of the audio signal output from the speaker, The score is calculated by considering the pitch of the input microphone sound and the accompaniment sound, frequency, and phase difference of the audio signal to be played back, and the calculated score is displayed on the screen at the end of the song so that users can evaluate their singing ability. There is a function added.

On the other hand, in the process of producing a karaoke audio song to be played on the karaoke audio device, unlike a typical karaoke audio song that is produced so that most of the audio data, video data and lyrics data in a separate form, Semi Karaoke (Semi Karaoke) The audio song is produced so that the lyrics and the data are displayed together in one screen at the time of video production, instead of separately producing lyrics data at the time of video production.

Since a karaoke audio device that plays a semi karaoke audio song cannot detect the start point of the lyrics provided through the subtitles displayed on the screen, that is, the beginning of the coloring, one song cannot be detected. As the song score is calculated from the start point to the end point of the audio signal and the user's microphone sound input through the microphone, the accuracy of the song score is reduced.

Accordingly, in the semi karaoke disc audio device, the accompaniment sound of the audio signal is completed from a predetermined time when the accompaniment sound of the audio signal is reproduced, instead of calculating only the portion of the user singing the actual song as a score. Since the song score is calculated, the song score is calculated lower than that of a general karaoke audio song, and thus there is a problem that the reliability of the song score cannot be given.

Accordingly, the present invention has been created to solve the above problems, and for example, in a semi karaoke audio device, the audio and video data of the selected song is reproduced and processed, and the lyrics data is reproduced from the reproduced video signal. Detects coloring change, compares the user's microphone sound with the accompaniment sound of the reproduced audio signal while the coloring change detection signal of the lyrics data is detected, calculates the song score, and returns to the screen when the selected song is finished playing. It is an object of the present invention to provide an apparatus and method for calculating a score in a semi-karaoke audio device for outputting.

A score calculation device in a semi karaoke audio device according to the present invention for achieving the above object is selected in the score calculation device in a semi karaoke audio device that the lyrics data is produced as a background screen and output, Reproducing means for reproducing and processing audio and video data of a song;

Coloring detection means for detecting a coloring change of the lyrics data in the reproduced video signal, and a user's microphone sound and the accompaniment sound of the reproduced audio signal while the coloring change detection signal of the lyrics data is detected from the coloring detection means; Control means for calculating the song score, and outputs the calculated song score to the screen when the selected song is completed, characterized in that it comprises a configuration.

The coloring detection means of the present invention checks the RGB value of each pixel of the lower part of the screen in the video signal to be reproduced, and if the RGB value of the pixel successive to the lower part of the screen is 8 pixels or more, it is determined as the lyrics data start part. And continuously determining whether a plurality of pixels at the beginning of the lyrics data are changed to the same color, and outputting a coloring change detection signal for the coloring change start part and the end part.

The lower portion of the screen of the present invention is characterized in that the screen resolution (20x240 ~ 720x480) portion where the lyrics data is displayed.

The lyrics data start part determination of the present invention is characterized in that when the same RGB value is 20 pixels or more per line in the lower part of the screen 720x240 to 720x480, the lyrics data start part is determined.

The control means of the present invention checks whether the coloring information of the lyrics data and the coloring change color of the coloring change detection signal outputted from the coloring detection means match the navigation information of the selected song, and only when the coloring color matches. The song score is calculated through the user's microphone sound and the accompaniment sound of the audio signal.

In addition, the score calculation method in the semi-karaoke audio system according to the present invention is a score calculation method in a semi-karaoke audio device in which lyrics data is produced as a background screen and output, and the audio and video data of the selected song. A second step of reproducing and processing a signal, a second step of detecting a coloring change of lyrics data in the reproduced video signal, and a microphone sound of a user and an audio signal to be reproduced while a coloring change detection signal of the lyrics data is detected. Comprising three steps to calculate the song score by comparing the accompaniment, and outputting the song score on the screen when the selected song is completed, characterized in that it comprises a.

In the second step of the present invention, steps 2-1 of checking the RGB value of each pixel of the lower part of the screen in the video signal to be reproduced, and checking whether the lyrics data is present, and the RGB of the pixels consecutive to the lower part of the screen. If the value is 8 pixels or more, step 2-2 of outputting the lyrics data detection signal by discriminating to the beginning of the lyrics data and continuously changing whether the plurality of pixels of the beginning of the lyrics data are changed to the same color to change the coloring. And 2-3 steps of outputting a coloring change detection signal for a start portion and an end portion.

The lower portion of the screen of the present invention is characterized in that the screen resolution (20x240 ~ 720x480) portion where the lyrics data is displayed.

According to an embodiment of the present invention, when the same RGB value is 20 pixels or more per line in the lower portion of the screen 720x240 to 720x480 in step 2-2 of determining the lyrics data start part, the lyrics data is determined as the beginning part of the lyrics data.

In the third step of the present invention, it is checked whether the coloring information of the lyrics data and the coloring change color of the coloring change detection signal output from the coloring detection means match the navigation information of the selected song, and only when the coloring color matches. The song score is calculated through the user's microphone sound and the accompaniment sound of the audio signal.

The apparatus and method for calculating a score in a karaoke audio device according to the present invention as described above, for example, in a semi-karaoke audio device in which the lyrics data is produced in the background and one screen, the audio and video data of the selected song Reproducing the signal processing, detecting color change of the lyrics data in the reproduced video signal, and comparing the accompaniment sound of the reproduced audio signal with the user's microphone sound while the coloring change detection signal of the lyrics data is detected. By calculating the score, and outputting the song score on the screen when the selected song is finished playing, semi-karaoke also detects the beginning of the actual lyrics data by changing the coloring to calculate the song score to give users a more reliable song score There is an advantage that can be provided.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of an apparatus and method for calculating a score in a semi karaoke audio device according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram schematically showing an internal configuration of a semi karaoke audio device according to the present invention, and FIG. 2 is a diagram showing an embodiment in which karaoke audio songs are recorded on an optical disc according to the present invention.

First, the apparatus for calculating a score in a semi karaoke audio device according to the present invention can be applied to various semi karaoke audio devices, and as shown in FIG. 1, for example, to a semi karaoke audio device to which the present invention is applied, An optical disc 10, an optical disc player 11, an audio signal processor 12, a video signal processor 13, a coloring detector 14, an OSD (On Screen Display) generator 15, a key input unit 16, It consists of a microcomputer 17, a memory 18, a microphone 19, a microphone sound signal processing unit 20, and a mixer 21.

For example, in the karaoke disc in which the karaoke audio songs are recorded, which is the optical disc 10, as shown in FIG. 2, a plurality of audio songs (Audio # 1) are provided in the data area of the optical disc. , # 2, # 3) data are recorded and stored, and in one audio song data area (Payload), audio data corresponding to a song accompaniment, video data and song corresponding to a song wallpaper Lyric data corresponding to the lyrics data is included, and various navigation information for controlling playback of the audio songs are recorded and stored in a specific area, for example, coloring of lyrics data. Color_Red) information and the like are recorded and stored.

In the optical disc player 11 for reproducing the optical disc 10, various methods for controlling playback of the audio songs in the memory 18 after searching and reading the data of the audio song requested by the user with reference to the navigation information In addition to temporarily storing the navigation information, audio data and video data recorded on the optical disc 10 are reproduced and output to the audio signal processing unit 12 and the video signal processing unit 13.

The audio signal processor 12 converts audio data reproduced by the optical disc player 11 into an analog signal, and the accompaniment sound of the audio signal converted into the analog signal is controlled by the microcomputer 17. It is output through a plurality of speakers not shown.

The video signal processing unit 13 performs MPEG decoding signal processing on the video data reproduced by the optical disc player 11, and various menu screens output through the OSD generator 15 under the control of the microcomputer 17; The song score and the like are output to the screen of an external device such as a television with a video signal.

The coloring detector 14 may, for example, change the coloring of the lyrics data output to the screen together with the video signal output from the video signal processor 13 under the control of the microcomputer 17. The start part and the end part are detected, and a coloring change detection signal is output.

The OSD generator 15 generates a score result screen according to preset character information of various menu screens selected through the key input unit 16 and scores stored in the memory 18 under the control of the microcomputer 17. Output to the screen of an external device such as a television for a preset time.

The microcomputer 17 controls the overall operation of the karaoke audio device according to the user's operation, and is recorded on the optical disc 10 by the key input unit 16 or the remote controller (not shown) according to the user's request. When the music is selected, the optical disc player 11 is controlled to reproduce the music corresponding to the selected song, and the audio and video data reproduced by the optical disc player 11 is reproduced by the audio signal processor 12 and the video signal processor 13. To be entered.

In addition, the microcomputer 17 controls the microphone sound signal processor 20 while the coloring detection unit 14 detects a coloring change detection signal of the lyrics data until the selected song is reproduced. The song score is calculated through the microphone sound input from the microphone 19 and the accompaniment sound of the audio signal output from the audio signal processor 12, and the calculated score is stored in the memory 18. Here, the song score calculation method is a general method of calculating a frequency level, a pitch, a beat, and the like through an accompaniment sound of a reproduced audio signal and a user's microphone sound, and a detailed description thereof will be omitted.

When the selected music is played, the microcomputer 17 controls the OSD generator 15 to display the song score stored in the memory 18 on a screen of an external device such as a television.

The microphone sound processor 20 amplifies a user's voice input through the microphone 19, and processes the amplified voice signal under the control of the microcomputer 17 to output the signal to the mixer 21, The mixer 21 mixes the accompaniment sound of the audio signal output from the audio signal processor 40 and the microphone sound signal output from the microphone sound processor 20 and outputs the same through a plurality of speakers (not shown).

An operation process of the karaoke audio device to which the score calculation method according to the present invention configured as described above is applied will be described in detail with reference to FIGS. 3 and 4.

3 is a flowchart illustrating a method for calculating a score in a semi karaoke audio device according to the present invention, and FIG. 4 is an exemplary view for explaining a process of detecting lyrics data of a karaoke audio song according to the present invention.

First, the score calculation method in the karaoke audio device to which the present invention is applied, for example, as shown in Figure 3, the user switches the power of the karaoke audio device by turning on the key input unit 16 or the remote control When the predetermined music recorded on the optical disk 10 is selected, the microcomputer 17 controls the optical disk player 11 to reproduce the selected music, and the music selected by the optical disk player 11 is selected. Various navigation information of, for example, reading color information (Lyric) Coloring (Coloring Color_Red) information and the like to read and store in the memory 18, the audio and video data recorded on the optical disk 10 to reproduce the audio signal The reproduction operation output to the processing unit 12 and the video signal processing unit 13 is performed (S10).

On the other hand, the microcomputer 17 controls the coloring detector 14 until a point in time when the selected song is reproduced, and the example of the video signal output from the video signal processor 13 through the coloring detector 14 is used. For example, assuming that the screen resolution is 720x480 in the NTSC (National Television System Committee) method, the RGB value of each pixel of the lower portion (720x240 to 720x480) of the screen resolution is checked to determine whether the lyrics data exists. Check (S11). Here, in the coloring detector 14, as shown in FIG. 4, the starting part per letter M becomes, for example, 4 to 8 pixels, and is continuous to the lower part of the screen (20x240 to 720x480). When the RGB value of the pixel is 240/240/240 (white, for example), and the continuous value is 8 pixels or more, it is determined as the beginning of the lyrics data, and the lyrics data detection signal is output. do.

Also, in the coloring detector 14, when the same RGB value per line is, for example, 20 pixels or more in the lower portion 720x240 to 720x480 of the screen as shown in FIG. 4, the lyrics data starts. A part is discriminated, and the lyrics data detection signal is output (S12).

Subsequently, in the coloring detector 14, whether the plurality of pixels Pixel detected at the beginning of the lyrics data are changed to a specific same color, for example, red, yellow, blue, or the like. Continuously detects the color change start part and the end part, and outputs the color change detection signal (S13).

At this time, the microcomputer 17 reads the navigation information stored in the memory 19, for example, coloring color_red information of lyrics data, and detects a coloring change output from the coloring detection unit 14. Coloring change of the signal is confirmed that the matching color, if the coloring (Coloring) color matching, the microphone sound signal processing unit 20 is controlled, the frequency level of the microphone sound input from the microphone 19, Comparing the beat, pitch and frequency level, beat, and pitch of the accompaniment sound of the audio signal output from the audio signal processor 12, the corresponding score is calculated until the selected song is played, and the calculated song score Is stored in the memory 18 (S14).

The microcomputer 17 determines whether or not the selected song has been reproduced according to whether or not the audio accompaniment sound is being reproduced from the optical disc player 11 (S15). Repeat (S10). In addition, when the selected song is played, the calculated song score is read from the memory 18, the song score screen is generated through the OSD generator 15, and the video signal processor 13 is used. In operation S16, the video signal is mixed with the video signal processed in the display and output on the screen of an external device such as a television.

Subsequently, in the microcomputer 17, the user operates the key input unit 16 or the remote controller to determine whether another song is selected on the optical disc 10, and when a predetermined other song is selected, the process as described above is performed. Repeat (S10 ~ S16).

As described above, the present invention excludes the score for the part without the lyrics data in the semi-karaoke audio device, and the accompaniment sound of the audio signal and the user's microphone sound while the coloring change detection signal is detected in the part where the lyrics data exists By calculating the song score through, it is possible to provide users with a more accurate song score.

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

1 is a block diagram schematically illustrating an internal configuration of a semi karaoke audio device according to the present invention.

2 is a diagram showing an embodiment in which karaoke audio tunes are recorded on an optical disc according to the present invention;

3 is a flowchart for explaining a score calculation method in a semi karaoke audio device according to the present invention;

4 is an exemplary diagram for explaining a process of detecting lyrics data of a karaoke audio song according to the present invention;

Explanation of symbols on the main parts of the drawings

       10: optical disc 11: optical disc player

12: audio signal processor 13: video signal processor

14: coloring detection unit 15: OSD generation unit

16: key input unit 17: microcomputer

18: memory 19: microphone

20: microphone sound signal processor 21: mixer

Claims (10)

In the score calculation device in a semi karaoke audio device that the lyrics data is produced in a background and a screen, Reproducing means for reproducing and processing the audio and video data of the selected song; Coloring detection means for detecting a coloring change of lyrics data in the reproduced video signal; And While the coloring change detection signal of the lyrics data is detected from the coloring detection means, the song score is calculated by comparing the accompaniment sound of the user's microphone sound with the reproduced audio signal, and the calculated song score is displayed when the selected song is completed. And a control means for controlling the output to a semi-karaoke audio system, characterized in that the configuration. The method of claim 1, The coloring detection unit checks the RGB value of each pixel of the lower part of the screen in the video signal to be reproduced, and if the RGB value of the pixel successive to the lower part of the screen is 8 pixels or more, the coloring detection means determines the lyrics data at the beginning. And continuously determining whether a plurality of pixels at the beginning of the data are changed to the same color, and outputting a coloring change detection signal for the beginning and the end of the coloring change. The method of claim 2, The lower portion of the screen, the score calculation device in the semi-karaoke audio system, characterized in that the screen resolution (20x240 ~ 720x480) portion in which the lyrics data is displayed. The method of claim 2, Wherein the lyrics data start portion is determined, if the same RGB value per line in the lower portion (720x240 ~ 720x480) of the screen, the score calculation apparatus in the semi-karaoke audio system, characterized in that the determination as the beginning of the lyrics data. The method of claim 1, The control means checks whether the coloring information of the lyrics data and the coloring change color of the coloring change detection signal output from the coloring detection means match the navigation information of the selected song, and only when the coloring colors match, the user's microphone A score calculation device in a semi karaoke audio system, characterized in that the song score is calculated by accompaniment of the sound and audio signal. In the method of calculating the score in a semi karaoke audio device that the lyrics data is produced in the background and one screen, A first step of reproducing and processing the audio and video data of the selected song; Detecting a color change of lyrics data in the reproduced video signal; Calculating a song score by comparing a user's microphone sound with an accompaniment sound of a reproduced audio signal while the coloring change detection signal of the lyrics data is detected; And And a fourth step of outputting a song score on the screen when the selected song is played. The method of claim 6, In step 2, step 2-1 of checking whether or not the lyrics data exists by checking an RGB value of each pixel of the lower part of the screen in the video signal to be reproduced; If the RGB value of the pixels consecutive to the lower portion of the screen is 8 pixels or more, determining that the lyrics data is at the beginning and outputting the lyrics data detection signal; And And continuously determining whether the plurality of pixels at the beginning of the lyrics data are changed to the same color, and outputting a coloring change detection signal for a coloring change start part and an end part. Method for calculating scores in a semi karaoke audio system. The method of claim 7, wherein The lower portion of the screen, the score calculation method in the semi-karaoke audio system, characterized in that the portion of the screen resolution (20x240 ~ 720x480) that the lyrics data is displayed. The method of claim 8, In step 2-2 of determining the start portion of the lyrics data, if the same RGB value per line in the lower portion of the screen (720x240 ~ 720x480) is 20 pixels or more, the semi-karaoke audio system, characterized in that it is determined as the beginning of the lyrics data Score calculation method. The method of claim 1, In the step 3, it is checked whether the coloring information of the lyrics data and the coloring change color of the coloring change detection signal outputted from the coloring detection means match the navigation information of the selected song, and the user's microphone only when the coloring colors match. A score calculation method in a semi karaoke audio system, characterized in that the song score is calculated by accompaniment of the sound and audio signal.
KR1020070080800A 2007-08-10 2007-08-10 Apparatus and method for accounting grade in semi karaoke audio device KR20090016277A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107707828A (en) * 2017-09-26 2018-02-16 维沃移动通信有限公司 A kind of method for processing video frequency and mobile terminal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107707828A (en) * 2017-09-26 2018-02-16 维沃移动通信有限公司 A kind of method for processing video frequency and mobile terminal

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