JP2000305575A - Introduction synchronization device for karaoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an introduction synchronization device for a karaoke device to synchronize a start of a word part in an accompaniment with a start of singing of a singer to make the singer song comfortably and to eliminate making listeners of the singer uncomfortable when the singer fails to synchronize his song with the accompaniment. SOLUTION: A disk 1 is provided with a spindle motor 2 and an optical pickup 3. A control part 5 controls the spindle motor 2 and the optical pickup 3 to provide a signal processing part 4 with a signal read out. The signal processing part 4 produces a background video signal (a), a caption video signal (b), and an accompaniment aural signal (c). A start-of-singing detecting part 12 detecting a start of singing of a singer with a microphone 9 is provided. When the start-of-singing detecting part 12 detects a start of singing after an accompaniment starts, the accompaniment is controlled to start with a point of the accompaniment corresponding to a start of word in the accompaniment already detected by a cell type detecting part 10 regardless of the current position of the accompaniment.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a singing start synchronizing device of a karaoke device, and more particularly to a singing start synchronizing device of a karaoke device which can match the time when the lyric portion of the accompaniment starts to the time when the singer starts singing. Related to the device.

[0002]

2. Description of the Related Art Karaoke information obtained using communication means such as a telephone line, an LD (laser disk) and a DVD
(Acoustic audio signal) from the karaoke information obtained by playing back a recording medium such as a (digital video disc)
A karaoke apparatus in which a singer sings in accordance with the karaoke is widely used. In the case of a karaoke apparatus that obtains karaoke information by reproducing a recording medium, a schematic circuit thereof is configured as shown in FIG. .

That is, in the conventional karaoke apparatus 100 for reproducing a recording medium to obtain karaoke information, a center hole of a disk 1 which is a recording medium such as an LD (laser disk) or a DVD (digital video disk) is detachable. A spindle motor 2 that can be freely mounted is provided. The disk 1 is driven to rotate by a spindle motor 2 based on a control command from a control unit 5, and information on a pit recording surface of the disk 1 is read by an optical pickup 3 and output to a signal processing unit 4. Then, when demodulation, code error correction, and the like are performed by the signal processing unit 4, a background video signal a, a subtitle video signal b, and an accompaniment audio signal c are generated at the same time.

The background video signal a is for reproducing a background image that matches the tune as the accompaniment progresses.
The caption video signal b displays one or several phrases of lyrics as the accompaniment progresses as captions. In some cases, the color of the caption changes so as to change in accordance with the progress of the song. The background video signal a and the subtitle video signal b are
By connecting a monitor display (not shown) to this output terminal, a monitor screen in which lyrics subtitles are superimposed on the background screen is obtained.

[0005] The accompaniment audio signal c is used to emit the accompaniment audio from a speaker or the like. The accompaniment audio signal c is mixed by the mixer 7 with the output of the amplifier 8 for amplifying the output of the microphone 9 to the line level. By connecting an “amplifier and a speaker (not shown)” to this output terminal, the accompaniment sound and the singing voice of the singer are output in a superimposed state.

[0006] The subtitle display superimposed on the background screen is as follows.
Changes in conjunction with the progress of the accompaniment sound by the accompaniment sound signal c,
That is, the characters of the lyrics change continuously or stepwise,
The character color changes, in other words, the caption and the accompaniment sound change in a completely interlocked state as the performance progresses.

[0007] When the recording medium is a DVD, one song is composed of a plurality of cells.
Lyric part, chorus part, pause performance part, final performance part ", and a cell type is defined for each cell. The details of these cell forms are disclosed in, for example, Japanese Patent Application Laid-Open No. 8-339194, and what directly relates to the present invention is that each part of the accompaniment composed of “prelude, lyric part, interlude” This means that the data is specified and recorded. Also, when obtaining karaoke information using communication means such as a telephone line, it has substantially the same data.

[0008]

In such a conventional karaoke apparatus, since the subtitles are generated by the subtitle video signal accurately following the progress of the performance by the accompaniment audio signal, the singer performs the lyric portion of the song. When singing, the subtitles change so rapidly that the singer could not keep up, and the timing of singing was sooner or later from the beginning of the lyric part, and the accompaniment and the singing often shifted.

Depending on the tune of the karaoke song, if the prelude is very similar to some of the melody in the lyrics,
It is easy to take the timing of singing out, and it is generally difficult to take out the timing of singing out if it is a prelude that is completely different from the melody of the lyrics part. The karaoke song must be replayed from the beginning (playing from the beginning of the prelude) or sung from the middle while the lyrics are already in the song. It can cause discomfort to the listener.

Therefore, an object of the present invention is to make it possible to match the time when the lyric part of the accompaniment is started with the time when the singer starts singing, so that the singer can sing comfortably and the accompaniment and the singing fail. It is an object of the present invention to provide a karaoke apparatus singing start synchronizing apparatus which does not cause discomfort to a person listening to the singer's singing.

[0011]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a singing start synchronizing apparatus of a karaoke apparatus according to the present invention comprises:
The following characteristic configuration is adopted.

(1) Lyric start time detection for previously finding a start time of a lyrics playing section located after the performance of a prelude or interlude corresponding to an accompaniment audio signal extracted from karaoke information obtained by using communication means Unit, a singing start detecting unit that detects that the singer has started singing, and a performance corresponding to the accompaniment audio signal extracted from the karaoke information is started, and the singing start is detected by the singing start detecting unit. A control unit that controls the performance to start from a performance portion corresponding to the start time of the lyrics performance unit already detected by the lyrics start time detection unit, regardless of the performance position based on the accompaniment audio signal. Is provided.

(2) Lyrics start time for determining in advance the start time of the lyrics performance part located after the performance of the prelude or interlude corresponding to the accompaniment audio signal extracted from the karaoke information obtained by reproducing the karaoke DVD A detection unit, a singing start detection unit that detects that the singer has started singing,
A performance corresponding to the accompaniment audio signal extracted from the karaoke information is started, and when the singing start is detected by the singing start detecting unit, the start of the lyric playing unit already detected by the lyric starting point detecting unit is started. And a control unit for controlling to start performance from a performance portion corresponding to the time point regardless of a performance position based on the accompaniment audio signal.

(3) The lyric start point detecting section of (1) or (2) is configured to determine the start point of the lyric playing section in advance by decoding the cell information included in the karaoke information.

(4) The lyrics start point detecting section of (1) or (2) is configured to determine the start point of the lyrics playing section in advance by decoding the lyrics subtitle information included in the karaoke information. .

(5) The lyric start point detecting section according to (1) or (2), wherein the accompaniment corresponds to a point in time when the volume level of the sample vocal audio signal included in the karaoke information exceeds a predetermined value. The performance position based on the voice signal is determined in advance as the start time of the lyrics performance section.

(6) The lyric start time detecting section of (1) or (2) may be arranged so that the lyric subtitle information included in the karaoke information indicates that the current position of the lyric is represented by a subtitle color change. When one or more pixels of three or more colors are adjacent to each other in one frame based on the lyric subtitle information, it is identified as a lyric part. When pixels of two or less colors are adjacent to each other, a non-lyric And a part that changes from the lyric part to the non-lyric part is determined in advance as a start time of the lyric part.

(7) The lyric start point detection unit of (6) is configured such that the lyric subtitle information included in the karaoke information includes information representing the current position of the lyric in a subtitle color change, When one or more pixels of three or more colors are adjacent to each other in one frame based on the lyrics subtitle information, it is identified as a lyric part, and when two or less pixels of pixels are adjacent to each other, it is identified as a non-lyric part. The part that changes from the lyric part to the non-lyric part is obtained in advance as the start time of the lyric part, and if the lyric subtitle information is interrupted for a certain period of time due to page switching or the like, the part is changed to the lyric part without being changed to the lyric part. The lyric section is determined.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS. First, a first embodiment of the present invention will be described in detail with reference to FIG.
This embodiment is an example in which the present invention is applied to a case where karaoke DVDs are reproduced to obtain karaoke information.

FIG. 1 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronizing apparatus of a karaoke apparatus according to a first embodiment of the present invention. Is provided with a spindle motor 2 that can be mounted on the spindle motor. The disk 1 is driven to rotate by a spindle motor 2 based on a control command from a control unit 5, and information on a pit recording surface of the disk 1 is read by an optical pickup 3 and output to a signal processing unit 4. Then, when demodulation and code error correction are performed by the signal processing unit 4, the background video signal a and the subtitle video signal b
And an accompaniment audio signal c and a cell information signal d.

The background video signal a is for reproducing a background image that matches the tune as the accompaniment progresses.
The caption video signal b displays one or several phrases of lyrics as the accompaniment progresses as captions. In some cases, the color of the caption changes so as to change in accordance with the progress of the song. The background video signal a and the subtitle video signal b are
By connecting a monitor display (not shown) to this output terminal, a monitor screen in which lyrics subtitles are superimposed on the background screen is obtained.

The accompaniment audio signal c is for causing accompaniment audio to be emitted by a speaker or the like, and is mixed by the mixer 7 with the output of the amplifier 8 for amplifying the output of the microphone 9 to the line level and output as audio. By connecting an “amplifier and a speaker (not shown)” to this output terminal, the accompaniment voice and the singing voice of the singer are superimposed and emitted.

The cell information signal d is cell information contained in signal information obtained by reproducing the disc 1 with the optical pickup 3, that is, "title screen, previous performance section, lyrics section, chorus section, inter-play section, The final performance section is defined separately.
This is a signal obtained by extracting information defining the cell type for each cell, and the cell information signal d is configured to be supplied to the cell type detection unit 10. The lyrics start point detecting section is configured to determine the start point of the lyrics playing section in advance by decoding the cell information recorded on the disk 1.

The output of the cell type detection unit 10 is supplied to a search control unit 11, and the control unit 5 is controlled by the output of the search control unit 11 to obtain a desired search position, that is, a lyric performance unit. To retrieve the data at the start of the process. The singing start detecting unit 12 connected to the output terminal of the amplifying unit 8 detects that the singer has started singing, and specifically, a signal obtained by amplifying the audio output of the microphone 9 by the amplifying unit 8. Is determined to start singing when the level (volume level) exceeds a predetermined level.
According to the output from the singing start detecting unit 12, the signal processing unit 4,
The control unit 5, the cell type detection unit 10, and the search control unit 11 are configured to be controlled in a combined manner.

Therefore, the information recorded on the disk 1 is
It is rotated by the spindle motor 2 under the control of the control unit 5, taken out by the optical pickup 3, and processed by the signal processing unit 4 as “background video signal a, subtitle video signal b, accompaniment audio signal c, cell information signal d”. Is output. The cell information signal d is supplied to the cell type detection unit 10, and the cell type detection unit 10 decodes the cell information (cell information signal d) recorded on the disk 1 so that the start time of the lyrics performance unit is determined in advance. It is obtained and stored in a memory (not shown).

When the singer starts operation by operating an operation start switch (not shown) or the like, the disk 1
The accompaniment sound signal c extracted from the information recorded in the accompaniment starts with the accompaniment sound signal c. The output of the accompaniment sound signal c is output as a sound output, and the first part of the prelude is started to emit sound.

At the same time, a video output in which the scene video signal a and the subtitle video signal b are mixed by the mixer 6 is supplied to a monitor display (not shown), and the reproduction of an appropriate image is started. At the time when the reproduction of this image was started,
Since this is the first image of the prelude corresponding to the accompaniment audio signal c, the subtitle display based on the subtitle video signal b is not performed.

When the performance is started and the music progresses in this way, when the singing start detecting unit 12 detects the start of the singing, that is, when the singer starts singing with the microphone 9, the volume of the voice becomes a predetermined value. When it is detected that the level has been exceeded, the singing start detection unit 12 outputs the signal processing unit 4, control unit 5, cell type detection unit 10, search control unit 1
A control signal is output to "1", and a performance position based on the accompaniment audio signal c is shifted from a performance portion corresponding to the start time of the lyrics performance portion already detected by the cell type detection portion 10 (lyric start time detection portion). It is controlled so that the performance is started regardless of it.

In other words, when the singer starts singing, regardless of whether or not the voice currently being emitted is the first of the singing part, the search control unit 11 causes the accompaniment audio signal c of the first part of the lyric part to be output. The optical pickup 3 is controlled so as to take out the song, and when the singing start time of the singer coincides with the beginning of the lyric part by the accompaniment audio signal c, the reproduction is continued as it is.

On the other hand, when the singer's singing start point is before the beginning of the lyric part, the search control unit 11 forcibly reads the singer's singing by the optical pickup 3 and conversely sets the singer's singing start point to the lyric part. After the first time, the reading by the optical pickup 3 is forcibly returned by the search control unit 11 quickly.

Since the time required for such fast-forwarding and fast-returning is very short, the fact that fast-forwarding or fast-returning is almost inaudible.

Similarly, when the first lyric of the karaoke song is completed and the interlude starts, the singer's singing start time is shifted from the first time of the nth (n is a natural number) lyrics. However, the time when the lyric portion of the accompaniment is started in a state where both are initially synchronized (synchronization of the first portion of the nth lyrics) can be matched with the singing start time of the singer.

Next, a second embodiment of the present invention will be described in detail with reference to FIG. This embodiment is an example in which the present invention is applied to a case where karaoke DVDs are reproduced to obtain karaoke information.

FIG. 2 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronization device of a karaoke apparatus according to a second embodiment of the present invention. The circuit configuration of karaoke apparatus 300 is the same as that of FIG. Unit, ie, the cell type detection unit 10
1 (shown in FIG. 1) is replaced by a color change command detection unit 13, which is configured to supply the cell information signal d generated by the signal processing unit 4 to the color change command detection unit 13.

The color change command detecting section 13
The subtitle video signal b corresponding to the lyrics subtitle information recorded in the subtitles is formed by information expressing the current position of the lyrics by a color change of the subtitles, and three or more colors are included in one frame by the subtitle video signal b. Is determined as a lyric part when the adjacent pixels are adjacent to each other, and is identified as a non-lyric part when pixels of two colors or less are adjacent to each other. It is configured to be obtained in advance as a time point.

When the singer starts operation by operating an operation start switch (not shown) or the like, the disk 1
The accompaniment sound signal c extracted from the information recorded in the accompaniment starts with the accompaniment sound signal c. The output of the accompaniment sound signal c is output as a sound output, and the first part of the prelude is started to emit sound.

At the same time, a video output in which the scene video signal a and the subtitle video signal b are mixed by the mixer 6 is supplied to a monitor display (not shown), and reproduction of an appropriate image is started. At the time when the reproduction of this image was started,
Since this is the first image of the prelude corresponding to the accompaniment audio signal c, the color of the caption based on the caption video signal b is not changed.

When the performance is started and the music progresses in this manner, when the singing start detection unit 12 detects the start of the singing, that is, when the singer starts singing with the microphone 9, the volume of the voice is set to a predetermined value. When it is detected that the level has been exceeded, the singing start detection unit 12 outputs the signal processing unit 4, control unit 5, cell type detection unit 10, search control unit 1
The control signal is output to "1", and the performance position based on the accompaniment voice signal c is obtained from the performance portion corresponding to the start time of the lyrics performance portion already detected by the color change command detection portion 13 (lyric start time detection portion). Is controlled so as to start playing regardless of the performance.

In other words, when the singer starts singing, regardless of whether or not the voice currently being emitted is the first of the singing part, the search control unit 11 causes the accompaniment voice signal c of the first part of the lyric part. The optical pickup 3 is controlled so as to take out the song, and when the singing start time of the singer coincides with the beginning of the lyric part by the accompaniment audio signal c, the reproduction is continued as it is.

On the other hand, when the singer's singing start time is before the beginning of the lyric part, the reading by the optical pickup 3 is forcibly fast-forwarded by the search control unit 11, and conversely, the singer's singing start time is changed to the lyric part. After the first time, the reading by the optical pickup 3 is forcibly returned by the search control unit 11 quickly.

Since the time required for such fast-forwarding and fast-returning is very short, the fact that fast-forwarding or fast-rewinding is almost inaudible.

Similarly, when the first lyric of the karaoke tune is completed and the interlude starts, even if the singer's singing start time is deviated from the first time of the nth lyric, the singer's singing start time is the same. The point in time when the lyric part of the accompaniment is started in a state where synchronization (synchronization of the first part of the nth lyric) has been achieved can coincide with the singing time of the singer.

Next, a third embodiment of the present invention will be described in detail with reference to FIG. This embodiment is an example in which the present invention is applied to a case where karaoke DVDs are reproduced to obtain karaoke information.

FIG. 3 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronizing apparatus of a karaoke apparatus according to a third embodiment of the present invention. Unit, ie, the cell type detection unit 10
1 is replaced by a level detecting unit 14, which is configured to be supplied with the reference vocal audio signal f generated by the signal processing unit 4. The performance position of the sampled vocal audio signal recorded at the time when the volume level of the sampled vocal audio signal exceeds a predetermined value is determined in advance as the start time of the lyrics playing section.

When the singer starts operation by operating an operation start switch (not shown) or the like, the disc 1
The accompaniment sound signal c extracted from the information recorded in the accompaniment starts with the accompaniment sound signal c. The output of the accompaniment sound signal c is output as a sound output, and the first part of the prelude is started to emit sound.
Simultaneously with this, a video output in which the background video signal a and the subtitle video signal b are mixed by the mixer 6 is supplied to a monitor display (not shown), and reproduction of an appropriate image is started.

When the performance is started and the music progresses in this way, when the singing start detecting unit 12 detects the start of the singing, that is, when the singer starts singing with the microphone 9, the sound volume of the voice becomes a predetermined value. When it is detected that the level has been exceeded, the singing start detection unit 12 outputs the signal processing unit 4, control unit 5, level detection unit 14, search control unit 11
A control signal is output from the performance portion corresponding to the start time of the lyrics performance portion already detected by the level detection portion 14 (the lyrics start time detection portion) regardless of the performance position based on the accompaniment audio signal c. It is controlled to start playing.

In other words, when the singer starts singing, regardless of whether or not the voice currently being emitted is the first of the singing part, the search control unit 11 causes the accompaniment audio signal c of the first part of the lyric part to be output. The optical pickup 3 is controlled so as to take out the song, and when the singing start time of the singer coincides with the beginning of the lyric part by the accompaniment audio signal c, the reproduction is continued as it is.

On the other hand, when the singer's singing start time is before the beginning of the lyric part, the search control unit 11 forcibly causes the optical pickup 3 to read the lyric part quickly. After the first time, the reading by the optical pickup 3 is forcibly returned by the search control unit 11 quickly.

Since the time required for such fast-forwarding and fast-returning is very short, the fact that fast-forwarding or fast-rewinding is almost inaudible.

Also, when the first lyric of the karaoke song is completed and the interlude is started, the singer's singing start time is shifted from the first time of the nth lyric in the same manner as described above. The point in time when the lyric part of the accompaniment is started in a state where synchronization (synchronization of the first part of the nth lyric) has been achieved can coincide with the singing time of the singer.

If the reference vocal sound signal f output from the signal processing section 4 is combined with the accompaniment sound signal c and the microphone input signal by the mixer 7 as necessary, the singing is performed in accordance with the reference vocal sound. If the singer is a male singer and the reference vocal voice is female, for example, a male and female duet can be performed.

Next, a fourth embodiment of the present invention will be described in detail with reference to FIG. This embodiment is an example in which the present invention is applied to a case where karaoke DVDs are reproduced to obtain karaoke information.

FIG. 4 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronizing device of a karaoke apparatus according to a fourth embodiment of the present invention. The circuit configuration of karaoke apparatus 500 is the same as that of FIG. Unit, ie, the cell type detection unit 10
(Shown in FIG. 1) is replaced by a color number detection unit 15,
The subtitle video signal b generated by the signal processing unit 4 is supplied to the color number detection unit 15.

The number-of-colors detecting section 15 forming the lyrics starting point detecting section is adapted to convert the lyrics caption information recorded on the disc 1 into
The current position of the lyrics is formed by information expressing the subtitle color change. If one or more pixels of three or more colors are adjacent to each other in one frame based on the lyrics subtitle information, the lyrics portion is set to 2
When pixels below the color are adjacent to each other, it is identified as a non-lyric part, and a part that changes from the lyric part to the non-lyric part is determined in advance as the start time of the lyric part.

In other words, if pixels of three or more colors (background color, first color, second color) are adjacent to each other within one frame of the sub-picture, the current position of the lyrics is displayed. Since it is conceivable, the lyric part can be distinguished from the case of two colors or less (including the case without subtitle) and the non-lyric part. However, the lyric part detected by the above method may be interrupted due to the switching of the subtitle page or the like. If the time is shorter than a certain time (for example, 10 seconds), it is regarded as the lyric part.

When the singer starts operation by operating an operation start switch (not shown) or the like, the disk 1
The accompaniment sound signal c extracted from the information recorded in the accompaniment starts with the accompaniment sound signal c. The output of the accompaniment sound signal c is output as a sound output, and the first part of the prelude is started to emit sound.

At the same time, a video output in which the background video signal a and the subtitle video signal b are mixed by the mixer 6 is supplied to a monitor display (not shown), and the reproduction of an appropriate image is started. At the time when the reproduction of this image was started,
Since it is the first image of the prelude corresponding to the accompaniment audio signal c, the subtitle color change display based on the subtitle video signal b is not performed.

When the performance starts and the song progresses in this way, when the singing start is detected by the singing start detecting unit 12, that is, when the singer starts singing with the microphone 9, the volume of the sound becomes a predetermined value. When it is detected that the level has been exceeded, the singing start detection unit 12 outputs a control signal to the “signal processing unit 4, control unit 5, color number detection unit 15, search control unit 11”, and the color number detection unit Control is performed so that the performance starts from the performance portion corresponding to the start time of the lyrics performance portion already detected by 15 (lyric start time detection portion) regardless of the performance position based on the accompaniment audio signal c.

In other words, when the singer starts singing, regardless of whether or not the voice currently being emitted is the first of the singing part, the search control unit 11 causes the accompaniment audio signal c of the first part of the lyric part. The optical pickup 3 is controlled so as to take out the song, and when the singing start time of the singer coincides with the beginning of the lyric part by the accompaniment audio signal c, the reproduction is continued as it is.

On the other hand, when the singer's singing start time is before the beginning of the lyric part, the search control section 11 forcibly causes the optical pickup 3 to read the lyric part quickly. After the first time, the reading by the optical pickup 3 is forcibly returned by the search control unit 11 quickly.

Since the time required for such fast-forwarding and fast-returning is very short, the fact that fast-forwarding or fast-rewinding is almost inaudible.

Also, when the first lyric of the karaoke song is completed and the interlude is started, the same applies as described above, even if the singer's singing start time is shifted from the first time of the nth lyric. The point in time when the lyric part of the accompaniment is started in a state where synchronization (synchronization of the first part of the nth lyric) has been achieved can coincide with the singing time of the singer.

It should be noted that the present invention is not limited to the above-described four embodiments, and it is needless to say that various modifications can be made without departing from the scope of the invention.
5 is adapted to the output of the accompaniment audio signal c from the signal processing unit 4 because the output is a so-called line level signal, and the accompaniment audio signal c is a microphone level signal. Can be omitted.

The above four embodiments are examples in which the present invention is applied to the case where karaoke DVDs are reproduced and karaoke information is obtained. However, it is also possible to obtain karaoke information using a telephone line or the like. Of course.

When karaoke information is obtained using a telephone line or the like, members for driving the DVD and reading signals are not required as compared with the case where karaoke information is obtained by reproducing a karaoke DVD. A mechanical track jump for fast-forward or fast-return required for forcibly correcting the timing deviation at the time of starting the singing is not required, and it can be realized by purely memory reading only.

The minimum conditions for obtaining karaoke information by using a telephone line or the like and for obtaining karaoke information by reproducing a karaoke DVD are as follows: subtitle video information accompanying accompaniment audio information is recorded. Is that
The presence or absence of background video information (specifically, the background video signal a shown in FIGS. 1 to 5) is completely arbitrary.

[0067]

As described above, the singing start synchronizing device of the karaoke apparatus according to the present invention is provided with the lyrics starting point detecting section and the singing starting detecting section, and the control section for controlling both of them has a karaoke arrangement. A performance corresponding to the accompaniment audio signal extracted from the information recorded on the DVD is started, and when the singing start is detected by the singing start detection unit, the lyric performance already detected by the lyric start time detection unit is detected. Since the performance is started from the performance portion corresponding to the start time of the part regardless of the performance position based on the accompaniment audio signal, the time when the lyrics portion of the accompaniment is started and the time when the singer starts singing coincide. A karaoke device that can comfortably sing the singer and does not cause discomfort to the person listening to the singer's singing because the accompaniment does not match the singing. It is possible to provide a gastric out synchronization device.

[Brief description of the drawings]

FIG. 1 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronization device of a karaoke device according to a first embodiment of the present invention.

FIG. 2 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronization device of a karaoke device according to a second embodiment of the present invention.

FIG. 3 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronization device of a karaoke device according to a third embodiment of the present invention.

FIG. 4 is a block circuit diagram showing a schematic circuit configuration of a singing start synchronization device of a karaoke device according to a fourth embodiment of the present invention.

FIG. 5 is a block circuit diagram showing an example of a schematic circuit configuration of a conventional karaoke apparatus.

[Explanation of symbols]

 Reference Signs List 1 disc 2 spindle motor 3 optical pickup 4 signal processing unit 5 control unit 6 mixer 7 mixer 8 amplification unit 9 microphone 10 cell type detection unit 11 search control unit 12 singing start detection unit 13 color change instruction detection unit 14 level detection Unit 15 Color number detection unit 200, 300, 400, 500 Karaoke device

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Naotaka Shimogo 1-14-6 Dogenzaka, Shibuya-ku, Tokyo F-term in Kenwood Co., Ltd. (Reference) 5D077 AA23 BB03 CA02 DC12 DC20 DE10 GA03 HC19 5D108 BD02 BD12 BE04 BE06 BG07 BG08 BH01 5D110 AA14 BC02 DA12 DE04 DE06

Claims (7)

[Claims] 1. A lyrics start point detecting section for previously determining a start point of a lyrics playing section located after the performance of a prelude section or an interlude section corresponding to an accompaniment audio signal extracted from karaoke information obtained by using communication means. And a singing start detecting unit that detects that the singer has started singing, and a performance corresponding to the accompaniment audio signal extracted from the karaoke information is started, and when the singing start is detected by the singing start detecting unit A control unit for controlling the performance to start from the performance portion corresponding to the start time of the lyrics performance unit already detected by the lyrics start time detection unit, regardless of the performance position based on the accompaniment audio signal. A singing start synchronizing device for a karaoke device, comprising: 2. A lyric start time detection for previously finding a start time of a lyric performance part located after the performance of a prelude or interlude corresponding to an accompaniment audio signal extracted from karaoke information obtained by reproducing a karaoke DVD. Unit, a singing start detecting unit that detects that the singer has started singing, and a performance corresponding to the accompaniment audio signal extracted from the karaoke information is started, and the singing start is detected by the singing start detecting unit. A control unit that controls the performance to start from a performance portion corresponding to the start time of the lyrics performance unit already detected by the lyrics start time detection unit, regardless of the performance position based on the accompaniment audio signal. A singing start synchronizing device for a karaoke device, comprising: 3. The apparatus according to claim 1, wherein the lyrics start point detecting section is configured to determine in advance the start point of the lyrics playing section by decoding the cell information included in the karaoke information. 3. A singing start synchronizing device of the karaoke device according to 2. 4. The lyric starting point detecting section is configured to determine the starting point of the lyric playing section in advance by decoding the lyric caption information included in the karaoke information. Item 3. A singing start synchronizing device of the karaoke device according to item 2. 5. The lyric starting section detects a performance position based on the accompaniment audio signal corresponding to a time point when a volume level of a sample vocal audio signal included in the karaoke information exceeds a predetermined value. 3. The singing start synchronizing apparatus for a karaoke apparatus according to claim 1, wherein the singing start synchronizing apparatus is configured to obtain the time in advance. 6. The lyric subtitle information, wherein the lyric subtitle information included in the karaoke information is formed of information representing the current position of the lyric in a subtitle color change, and one frame based on the lyric subtitle information. Is identified as a lyric part when pixels of three or more colors are adjacent to each other, and is identified as a non-lyric part when pixels of two or less colors are adjacent,
3. The singing start synchronizing device of a karaoke apparatus according to claim 1, wherein a portion that changes from the lyric part to the non-lyric part is determined in advance as a start time of the lyric part. 7. The lyrics start time detecting section, wherein the lyrics subtitle information included in the karaoke information is formed including information representing the current position of the lyrics by a color change of the subtitles, and the lyrics subtitle information is determined by the lyrics subtitle information. When pixels of three or more colors are adjacent to each other in one frame, it is identified as a lyric part. When pixels of two or less colors are adjacent to each other, it is identified as a non-lyric part. When the lyrics subtitle information is interrupted for a certain period of time or more due to page switching or the like, it is determined to be a non-lyric part without a lyrics part. 7. The singing start synchronizing device for a karaoke device according to claim 6, wherein the singing start synchronizing device is configured as described above.