JPH09185386A - Karaoke device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To check the interval of specified music previously at reproduction time by providing a means which takes out the highest interval part of reproduced music, a means which repeatedly reproduces the highest interval part for monitoring, an interval adjusting means which adjusts the interval of the reproduced music, and a means which reproduces the music after the interval is adjusted. SOLUTION: A system controller 9 reads time information out of the place where the highest interval of the specified music is recorded. Based on the read time information, the system controller 9 searches the place where the highest interval of the indicated music is recorded by a scan controller 11 and repeatedly reproduces a range of a time (t) from the part where the highest interval of the specified music is recorded. Then a change in key is instructed from an operation key input 10 for the voice which is repeatedly reproduced, and then the system controller 9 controls an audio controller 4 to select a proper key for the music which is varied in interval.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a karaoke machine.

[0002]

2. Description of the Related Art In CDs, LDs, cassette tapes, etc. used for karaoke, until the reproduction of the music is completed,
It was a device that did not know the pitch (key height) of the highest and lowest pitches in the song.

[0003]

When reproducing an audio signal recording medium, the high / low pitch of the audio signal cannot be known until the audio signal is reproduced and listened to. For example,
In the case of CDs, LDs, cassette tapes, etc. used for karaoke, the pitches of the highest and lowest pitches of the song are unknown until the song is finished.
If you can't sing because you can't keep up with the pitch while singing a karaoke song, you can operate the audio key controller to adjust the pitch of the song being played. It is inconvenient for users.

According to the present invention, when reproducing an audio signal recording medium,
The purpose is to make a person who listens to the voice signal recognize in advance the place where the voice signal has the highest pitch, the place where it has the lowest pitch, and the degree of the pitch of the voice signal. The present invention, when playing a karaoke song, allows the singer to recognize the pitch (key) of the song in advance before singing the song, so that the song starts at the highest and lowest pitches of the song. Play before,
The purpose is to be able to start singing after matching the key of the singer's voice with that sound, and to be able to adjust and set the key of the song in advance.

[0005]

According to the present invention, in a device for reproducing an audio signal recording medium, a means for extracting the highest pitch portion of a reproduced music piece, a means for repeatedly performing monitor reproduction of the highest pitch portion, and a music piece to be reproduced. The karaoke apparatus is provided with a pitch adjusting means for adjusting the pitch of No. 1 and a means for reproducing a music piece having the pitch adjusted by the pitch adjusting means.

Further, the present invention comprises means for extracting the lowest pitch portion of the reproduced music, means for repeatedly reproducing the lowest pitch portion by monitor, and pitch adjusting means for adjusting the pitch of the reproduced music.
It is a karaoke apparatus provided with a means for reproducing a music piece having a pitch adjusted by the pitch adjusting means.

The present invention also provides means for repeatedly performing monitor reproduction of the highest pitch portion and the lowest pitch portion of a reproduced music, a pitch adjusting means for adjusting the pitch of the reproduced music, and a pitch adjusted by the pitch adjusting means. This is a karaoke device equipped with a means for reproducing the song.

Further, according to the present invention, the pitch detecting means for detecting the highest pitch portion or the lowest pitch portion of the reproduced music, the storage means for storing the music portion of the detected pitch, and the repeated reading from the storage means for monitor reproduction. The karaoke apparatus is provided with means, pitch adjusting means for adjusting the pitch by monitor reproduction, and means for matching the pitch of the music to be reproduced with the pitch adjusted by the pitch adjusting means.

Further, according to the present invention, the pitch detecting means for detecting the highest pitch portion or the lowest pitch portion of the reproduced music, the storage means for storing the music portion of the detected pitch, and the repeated reading from the storage means for monitor reproduction. Means, a pitch adjusting means for changing a pitch while playing back on a monitor, a change amount storing means for storing a change amount of the pitch adjusted pitch, and a reproducing means for reproducing a music piece based on the stored change amount of the pitch. Karaoke device.

Further, according to the present invention, in an apparatus for reproducing an audio signal recording medium, means for detecting the highest pitch or the lowest pitch of the audio signal and the position information of the recording medium in which the highest pitch or the lowest pitch is recorded. The karaoke apparatus is provided with a means for storing and a means for searching and reproducing the highest pitch portion or the lowest pitch portion based on the stored position information.

According to the present invention, the sound of the highest pitch and the sound of the lowest pitch of the voice signal are reproduced immediately before the reproduction of the voice signal, so that the person listening to the voice signal can detect the sound of the highest pitch of the voice signal. The sound and the sound of the lowest pitch can be recognized in advance.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. When storing the place where the pitch of the voice information is the highest and the place where the pitch is low in the storage device, and playing back the voice information at that place. In this embodiment, the audio information is the reproduced audio of the channel in which the vocals of the karaoke audio multiplex CD are recorded,
Also, the information of the playback location is used as the subcode of the CD being played,
The case of using for karaoke will be described. FIG. 1 shows a block diagram of one embodiment of the present invention.

The detected RF signal from the optical disk 1 is demodulated by the optical pickup 2 through the demodulator 3 into an audio signal and a subcode including time information indicating the position.
The voice signal is sent to the audio key controller 4 and the pitch detector 7, and the subcode is sent to the pitch detector 7. The audio signal sent to the audio key controller 4 is output from the output circuit 6 through the muting circuit 13 together with the signal of the microphone input 8 by the mixing circuit 5, and the output of the mixing circuit 5 is monitored by the headphone or the like.
4 is monitored.

The system controller 9, which has been instructed to select a song by operating the operation keys 10, causes the scan controller 11 to search for the song instructed to select the song. During the search operation, the system controller 9 prohibits the audio key controller 4 from outputting the voice. When the search for the selected song is completed, whether or not the double speed reproduction of about 10 × speed is performed until the end of the song instructed by the scan controller 11 under the control of the system controller 9 so that the audio is prohibited from being output by the audio key controller 4 Or, as a simple detection method, normal CD reproduction for several tens of ms and several track jumps are repeated (hereinafter referred to as "fast-forward operation").

During the fast-forwarding operation, the system controller 9 controls the pitch detector 7 to detect the highest and lowest pitch intervals of the music designated by the music detector 7 and detect the music itself or the memory as subcode time information. It is stored in 15. When the normal CD reproduction and the track jump are repeatedly performed by the fast-forward operation, the pitch of the jumped track is not actually detected. However, in the voice information of this embodiment, the pitch is short (ms). Since it does not change in units, the number of track jumps is set to about 3 to 4 as a practical problem.

As a sound source channel whose pitch is detected by the pitch detector 7, a channel in which only vocals of a karaoke voice multiplex CD are recorded is detected and monitor output is enabled.

After the fast-forwarding operation is performed until the end of the music selection command, the scan controller 11 searches for the music selection command again by the instruction of the system controller 9. When the search is completed again, the scan controller 11 sets the pause state at the beginning of the music selected by the system controller 9.

When a music selection start instruction is received from the operation key input 10 from the pause state, the system controller 9 releases the pause state by the scan controller 11, and the system controller 9 causes the audio key controller 4 to output a voice signal. The output prohibition is released and the song selected is played. In the paused state, when there is an instruction from the operation key input 10 to reproduce the highest pitch of the selected music, the system controller 9 first records the highest pitch of the selected music from the pitch detector 7. Read the time information of the location. Based on the read time information, the system controller 9 causes the scan controller 11 to search for the location at which the highest pitch of the selected song is recorded.

The system controller 9 releases the audio signal output inhibition by the audio key controller 4, and repeatedly reproduces a range of time t from the portion in which the highest pitch of the designated music is recorded. t is set to 0.5 seconds by the operation key 10. During this repeated playback period,
A person who wants to sing a karaoke song can recognize the highest pitch of the song instructed to select the song. Alternatively, the system controller 9 controls the audio key controller 4 to change the pitch by instructing a key change from the operation key input 10 with respect to the sound being repeatedly reproduced, so that it is appropriate for the selected music. You can select keys.

When there is an instruction from the operation key 10 to start selecting a song from the reproduction state of the highest pitch of the selected song, the system controller 9 first prohibits the audio signal output by the audio key controller 4, The system controller 9 searches the song head with the scan controller 11, and after the search is completed, the system controller 9 releases the audio signal output prohibition with the audio key controller 4, and reproduces the song instructed. From the paused state, when the reproduction instruction of the lowest pitch of the selected music is input from the operation key 10, the range of t time from the recorded portion of the lowest pitch of the selected music is recorded. Play repeatedly. When there is an input from the instruction operation key 10 for starting the music selection from the reproduction state of the lowest pitch of the music selected, the music selected is reproduced.

Another embodiment of the present invention will be described with reference to FIG. When the sound information of the place where the pitch of the voice information is the highest and the place where it is low is reproduced by the recorded voice information, the switching SW1
Reference numeral 2 indicates whether the digital audio signal input to the audio key controller 4 having a digital audio signal D / A conversion function is a digital audio signal from the CD by the demodulator 3 or whether it is recorded by the pitch detector 7 or not. The signal is selected. In the initial state, the digital audio signal from the demodulator 3 is selected. When the search of the music selected by the music selection is completed, the system controller 9 controls the audio key controller 4 so that the voice is not output, and the fast forward operation is performed until the end of the music selected by the scan controller 11.

During the fast-forwarding operation, the pitch detector 7 is controlled by the system controller 9 to switch between the highest and lowest pitched areas of the selected music. It is stored in the memory 15 as digital voice information for t hours from the time of detection. The pitch detector 7 detects the pitch. After performing the fast-forward operation to the end of the song instructed, select the beginning of the song instructed to pause. Operation key 1 from the paused state
When an instruction to start selecting a song is received from 0, the song instructed to select a song is reproduced. When the operation key 10 gives an instruction to reproduce the highest tone portion of the music selected from the paused state, the system controller 9 first switches the switch SW1.
2 is switched so as to select the digital audio signal detected and stored by the pitch detector 7. Next, the system controller 9 releases the audio signal output prohibition at the audio controller 4.

After that, by repeatedly reproducing the highest note recorded in the pitch detector 7, a person who wants to sing karaoke can recognize the highest note part of the song instructed to select a song, or repeat the above. For the sound being played,
The audio key controller 4 is operated via the system controller 9 by instructing a key change from the operation keys 10.
By changing the pitch with, it is possible to specify an appropriate key selection for the selected song. The position information is recorded in the pitch detector or is stored in the memory 15 via the system controller 9. When stored in the memory 15, pitch information is stored together with position information, and information of a plurality of detected songs is sequentially stored.

When there is an input from the operation key 10 to start selecting a song from the reproduction state of the highest tone of the selected song, the system controller 9 first causes the SW 12 to select the digital audio signal from the demodulator 3. Switch to. Then, the system controller 9 causes the scan controller 11 to cancel the paused state and reproduces the music selected. When the operation key input 10 gives an instruction to reproduce the lowest note portion of the music piece selected from the paused state, the lowest note of the music piece selected from the memory 14 is repeatedly reproduced. When the operation key 10 is used to instruct the start of song selection from the lowest tone reproduction state of the song selected,
The karaoke playback of the selected song is started.

Next, the search operation by the system controller 9 when detecting the recording positions of the highest pitch portion and the lowest pitch portion of the pitch from the audio information of the CD will be described with reference to the flowchart of FIG. When the pitch search is instructed from the operation key 10, the pitch detector 7 initializes the comparison value for detecting the digital data from the demodulator 3.

The treble part frequency data F1 is 0 Hz, the bass part frequency data F2 is 20 KHz, and the treble part time data T
1 and the lowest tone part time data T2 are initialized to 0 (S1).

CD performance (performance of accompaniment music for karaoke by CD reproduction) is started (S2). Fourier transform is performed by digital data processing by the pitch detector, frequency data F0 of the audio signal channel is calculated (S3), frequency data F0 is compared with a comparison value F1 (S4), and if F0> F1, the value of F1 is calculated. Is updated to the value of F0, the playing time information based on the subcode data is stored in T1, and the treble position information is updated (S5).

When the treble data is updated or F0 <F1, F0 and F2 are compared (S6). At this time, F0 <F
In the case of 2, the value of F2 is set to F0, the bass frequency data is updated, the playing time information based on the subcode data is stored in T2, and the bass position information is updated (S7).

Further, in order to perform a high-speed search operation as necessary, a track jump is performed from the current position to a light position of about several tens of ms by the time information by the subcode as the next sampling place (S8). The frequency data F0 of the voice signal is repeatedly calculated until the pitch search end position is detected.
(S9), the highest pitch frequency F1 and the lowest pitch frequency F2 are detected, the time information T1 and T2 are determined as the position information thereof, and the CD performance of the designated song is ended (S1).
0).

0 as time information which is position information in the case of the determined highest pitch frequency F1 and lowest pitch frequency F2.
It is stored in the memory 15 by the system controller 9 as min00sec00frame (S11). or,
Although not shown in the flowchart of FIG. 3, the operation key 10
It is possible to provide a designation means for sequentially searching the pitches of all the songs recorded on the optical disc 1 by designating with, and to store in the memory 15 for each disc.

Next, an embodiment in which the pitch search result is used to reproduce a karaoke piece will be described with reference to the flow chart shown in FIG. The user operates the operation keys 10 to specify a disc, a song number, etc., and a song is selected (S2).
If it is not necessary to check the pitch as in 1), the designated music is immediately searched for and the reproduction operation is started (S33). However, when it is necessary to confirm the pitch (S22), the pitch is searched (S23).

First, the pitch of the highest pitch part is confirmed (S2
4). The optical controller 2 is moved by the scan controller 11 to the optical disc 1 based on the time information of T1 read from the memory 15 in which the time information which is the position information of the highest tone part is stored (S25). Time T1
The voice reproduction data in a predetermined range including the data is stored in the memory 15, and the performance is repeated for about 400 ms (S
26). Repeatedly until the confirmation of the highest tone part is finished, the read key (pitch) is read from the memory 15 with the operation keys 10 and controlled to obtain the monitor output via the mixing circuit 5 and adjust according to the voice key of the user. (S27), the change width of the keys of the treble part is determined (S28).

Next, when it is not necessary to confirm the pitch of the high pitched portion in S24 and when the key of the high pitched portion is determined, the pitch of the lowest pitched portion is confirmed (S29). Based on the time information of T2 read from the memory 15 in which the time information which is the position information of the lowest tone portion is stored, the optical pickup 2 is moved by the scan controller 11 with respect to the optical disc 1 to perform a search (S30). The voice reproduction data in a predetermined range including the time T2 is stored in the memory 15, and the time reproduction is repeated for about 800 ms (S31).

The reproduction is repeated until the confirmation of the lowest tone part is completed, and the read key from the memory 15 is designated by the operation keys 10 up and down to control the adjustment to suit the user. In this case, the position to be read from the memory 15 can be moved forward or backward by the operation key 10 in accordance with the phrase of the word of the song, so that the sound can be easily matched (S32).

The range of change of the keys in the low tone part is determined (S3
In order to match 3) and the change width of the keys of the low pitched portion and the high pitched portion, the pitch is further confirmed by repeating S24 to S33 (S34), and the operation keys 10 are instructed to make the comprehensive key determination ( S35).

The system controller 9 controls the audio key controller 4 to reproduce the optical disc 1 and start the karaoke performance of the obtained predetermined song (S35).

[0037]

[Effects of the Invention] Before singing a karaoke song, so that the singer's keys can be set in advance, the sounds at the highest and lowest pitches of the song are played before the song is sung The singer can start singing after matching the voice keys. Also, the key of the performance song can be set in advance by listening to the sound at the highest pitch and the lowest pitch of the song.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an embodiment according to the present invention.

FIG. 2 is a block diagram showing another embodiment according to the present invention.

FIG. 3 is a flowchart for searching the recorded positions of the highest note and the lowest note.

FIG. 4 is a flowchart illustrating the operation of the karaoke device.

[Explanation of symbols]

 1 Optical Disc 2 Optical Pickup 3 Demodulator 4 Audio Key Controller 5 Mixing Circuit 6 Output Circuit 7 Pitch Detector 8 Microphone Input 9 System Controller 10 Operation Key 11 Scan Controller 12 Switching SW 13 Muting Circuit 14 Monitor Output 15 Memory

Claims (6)

[Claims] 1. An apparatus for reproducing an audio signal recording medium, means for extracting the highest pitch portion of a reproduced music piece, means for repeatedly reproducing the highest pitch portion by monitor, and pitch adjustment for adjusting the pitch of the reproduced music piece. A karaoke apparatus comprising: means and means for reproducing a music piece having a pitch adjusted by the pitch adjusting means. 2. An apparatus for reproducing an audio signal recording medium, means for extracting the lowest pitch portion of a reproduced song, means for repeatedly reproducing the lowest pitch portion by monitor, and pitch adjustment for adjusting the pitch of the reproduced song. A karaoke apparatus comprising: means and means for reproducing a music piece having a pitch adjusted by the pitch adjusting means. 3. An apparatus for reproducing an audio signal recording medium, which comprises means for repeatedly performing monitor reproduction of the highest pitch portion and the lowest pitch portion of a reproduced music, and a pitch adjusting means for adjusting the pitch of the reproduced music. A karaoke device comprising means for reproducing a piece of music having a pitch adjusted by the pitch adjusting means. 4. An apparatus for reproducing an audio signal recording medium, and a pitch detecting means for detecting a maximum pitch portion or a minimum pitch portion of a reproduced music piece, and a storage means for storing a music piece portion of the detected pitch. It is characterized by further comprising: means for repeatedly reading from the storage means for monitor reproduction; pitch adjusting means for adjusting a pitch by the monitor reproduction; and means for matching the pitch of a music piece to be reproduced with the pitch adjusted by the pitch adjusting means. Karaoke device to play. 5. An apparatus for reproducing an audio signal recording medium, and a pitch detecting means for detecting a maximum pitch portion or a minimum pitch portion of a reproduced music piece, and a storage means for storing a music piece portion of the detected pitch. Repeated reading from the storage means for monitor reproduction, pitch adjustment means for changing the pitch while the monitor is reproduced, change amount storage means for storing the change amount of the pitch adjusted pitch, and change of the stored pitch A karaoke apparatus comprising a reproducing means for reproducing the song based on the amount. 6. An apparatus for reproducing an audio signal recording medium, comprising means for detecting the highest pitch or the lowest pitch of an audio signal, and position information of the recording medium in which the highest pitch or the lowest pitch is recorded. A karaoke apparatus comprising: a means for storing and a means for searching and reproducing the highest pitch or the lowest pitch based on the stored position information.