JP2896395B2 - Karaoke system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION When singing a song with karaoke recorded on a laser video disk, VHD, magnetic recording tape, or other information recording medium, the singer's vocal range does not match the accompaniment height, and Often you can't sing the treble of a song.

If the speed of karaoke playback is reduced or increased, and transposed to a suitable tone, the solution will be solved, but the tempo will change and the song feel will change, which is not desirable.

SUMMARY OF THE INVENTION The present invention has as its main object to solve the above-mentioned problem, and it is another object of the present invention to provide a karaoke system having an applause multiplication function, an exercise training function, and the like.

 Hereinafter, description will be made in accordance with embodiments.

1 and 2 show the configuration of a home-use karaoke system using a laser disk embodying the present invention, and (1)
Is the body. (2) is the entrance of the laser disk.
(3) is a start switch. (4) is a keyboard for music selection and setting of the highest sound. (5) is a monitor TV receiver connected to the main unit by a cable. (6) is a speaker for music. (7) is a microphone for music. (8) Applause microphone. (9) Applause speaker. (10) is a step-type exercise training machine. (11) and (12) are piezoelectric elements made of piezoelectric plastic or the like mounted on it. (13) and (14) are treads mounted thereon.

FIG. 3 shows an enlarged top view of a CAV type laser disk used in the system, and (15) shows a laser disk having a diameter of about 30 cm. (16) is the track containing the index signal among the signal tracks. (17), (18) and (19) are music synthesizer control signals (hereinafter abbreviated as MSC signals) corresponding to the first, second, and third karaoke musical scores on the A-side, respectively. A group of tracks (a collection of 10 to 100 concentric tracks).
(20) (21) (22) FM corresponding to each of the first to third songs
This is a track group including thousands of tracks each containing a synthesized television signal (video / audio signal) in which a modulated lyric or other video signal and an audio signal such as karaoke are superimposed.

In fact, there are 54000 tracks on one side of the laser disc (15) containing the signal for one frame of the TV screen.
There are books, 30 minutes, about 10 karaoke signals are included, each song is divided into thousands of tracks, and from the minimum diameter of each signal group to about 10 to 100 tracks M
A digital signal for SC (synthesizer control) will be input.

In each track, a frame number up to 54000 is sequentially recorded as a digital signal from the inside.

FIG. 4 is a block diagram showing an outline of an electric circuit of the system, and (23) reproduces a laser disk which has a built-in computer in the main body (1) and has additional functions, which is almost the same as a conventional apparatus. circuit. (24) is a pickup consisting of a laser beam generator and a reflected light receiving element.
(25) is the pickup drive motor. (26) is a disk drive motor. (27) is an audio signal amplifier.
(28) is a computer for signal processing of a music synthesizer. (29) is the memory attached to it. (30)
Is a signal line that sends MSC signals from the circuit (23) to the computer (28). (31) is a signal line for sending a frame number. (3
2) is a signal line that sends video signals etc. created by the computer (28). (33) is a music synthesizer. (34)
Is a limiter using a Zener diode or the like, which sends out only when the output voltage of the clapping microphone (8) exceeds a certain value. (35) is a computer for a clapping multiplier. (36) is the output pulse amplifier. (37) is a computer for information processing of the exercise training machine (10).

 Next, this operation will be described.

The main body (1) also has the same function as the conventional laser disk reproducing device, and inserts the laser disk (15) through the slot (2) and drives the keyboard (4) into the number containing the desired music.

For example, typing "A.1" selects the first song on the upper surface, and typing "B.3" selects the third song on the lower surface. The computer in the reproduction circuit (23) shown in FIG. The number is recorded.

Then, when the start switch (3) is pressed, the motor (26) starts to rotate, and the disc (15) continues to rotate until the performance of one song is completed.

The motor (25) also operates, the pickup (24) moves in the radial direction, first reads the index signal of the track (16), stores it in the memory of the playback circuit (23), and stores the track containing the specified song. The start position (frame number) of the group is determined from the contents of the index signal, and the pickup (24) is moved to the position of the innermost layer of the track group (20). The video is displayed on the monitor receiver (5), and the karaoke sound is amplified by the amplifier (27) and played from the speaker (6).

At the same time, the voice of the person singing in front of the microphone (7) also comes out of the speaker (6) while watching the lyrics reflected on the receiver (5).

If one song is completed and "B.3" is designated, a pickup for reproducing the lower surface of the disc (15) operates, reads an index signal recorded on the lower surface, and is located at a corresponding position, although not shown. Play the video and sound of the third track.

The above operation is almost the same as that of the conventional karaoke apparatus, but the unique function of the present invention can be used as follows.

If it is expected that the karaoke accompaniment does not match the singer's vocal range, after inputting the number of the song to be specified on the keyboard (4), the user will continue to drag the key name of the highest note that the singer can output without difficulty. Type in 4).

For example, when the sound is the A sound (440 Hz) in the fourth sound string or the A sound (880 Hz) in the fifth sound string, 10 / A in the keyboard (4)
Key, and the sound is C # of the fifth sound sequence or C # of the sixth sound sequence.
In the case of #, the user presses the 2 / C # key. (The code content of the note name designation and the code content of the song selection are common numerical values.
When a sound is specified, 1 is stored in the memory, and when a D sound is specified, 3 is stored in the memory. The two pieces of information entered from the keyboard (4) are both entered into the memory in the reproducing circuit (23), and when the start switch (3) is pressed next, the computer program in the reproducing circuit (23) is set to "A".・ In addition to “1 · 10” and the normal song designation “a · 1”, the control signal is used as the control information to indicate that the signal of the highest sound designation of “10 / a” has been entered. A truck (1)
Move to the position of 7), read the music synthesizer control (MSC) signal contained therein, and read the signal line (3
Through 0), it is sent to the control computer (28) of the music synthesizer and stored in the attached memory (29).

The highest tone designation signal is also sent to the memory (29) through the signal line (30) and stored.

Reading of the MSC signal on track (17) is completed within a few seconds, during which no video or sound is output. (The song name, composer name, and other video signals may be inserted at the beginning of the track (17), and may be displayed on the receiver (5) during this time.) When the MSC signal is read, the pickup (24) After reaching the position of the track (20), the video signal and the audio signal recorded on the track (20) are read, and the circuit (23) is connected to the receiver (5)
Video signal, but does not send an audio signal to the speaker (6), and does not generate a normal karaoke accompaniment sound.

However, the speaker (6)
The karaoke accompaniment produced by the music synthesizer (33) is amplified by the amplifier (27) and played from the speaker (6).

Now, assuming that the frame number of the innermost track of the track group (20) is 100 and the frame number of the outermost track is 5000, at the time of reading the track group (20), every 1/30 seconds, The frame numbers 100 to 5000 are sent as digital signals to the computer (28) through the signal line (31). In the computer (28), the first frame number sent immediately after the MSC signal is set to 0, and thereafter,
This is converted into an arithmetic progression with a tolerance of 4, 8, 12 ‥‥.

Therefore, the frame number of the track group (20) is 0 to 1960
Converted to 0.

The computer (28) measures the time difference between the respective frames by using a built-in timer, and generates a number which is incremented by one for each quarter frame period during which each frame number is transmitted.

Therefore, in the computer (28), a time number corresponding to time in an integer sequence of 0 to 19600 is generated every 1/120 second. (Dividing the time number by 120 tells the elapsed seconds from the start.) The MSC signals in track groups (17), (18), and (19) are sent to track groups (20), (21), and (22). This is a signal for controlling a music synthesizer (33) capable of reproducing almost the same music as the included karaoke number.

The music synthesizer (33) incorporates a number of oscillators that can generate sounds of various timbres (instruments) at any height (frequency) and any strength, and is almost the same as an orchestra. Can be reproduced. The contents of the MSC signal are as follows.

The name of the highest note of the song in one song. A #, D, etc. are described first.

 The start and end time numbers of a sound. 126-156 mag.

 The strength of the sound. f (horte), mp (mezzo piano), etc.

Change in sound intensity. 1 (unchanged until end), -31 (1/3
), 43 (parabolically increase up to 4 times), etc.

 Tone. V (violin), F (flute) and the like.

 height. D3 (D sound of the third sound sequence) and the like.

(Example) D, 0-240; f; -31; V; C # 4,0-360; pp; 23; F; G # 5 In the above example, the highest note of the song is the D sound, and the violin sound is This indicates that the sound of the flute continues for 2 seconds after the start of the song and increases while the sound of the flute continues for 3 seconds after the start of the song. The range between (,) is a group of codes that specifies the attribute of one note.

One MSC signal is stored in the memory (29) for one song, and at the time corresponding to the time signal generated by the computer (28), the MSC signal in the memory (29) is partially transferred to the music synthesizer (33). After being processed and fed, a music voltage output is generated from the synthesizer, amplified by the amplifier (27), and flows from the speaker (6).

Now, if the highest note of the song in the song is the D sound, and the highest possible sound of the singer is the B sound, if singing at a high pitch, sounds such as C, C #, and D cannot be output. In other words, it is necessary to sing one octave lower, making it difficult to produce the lowest note of the song, and reducing the singing of the song.

However, if it is previously input into the keyboard (4) that the highest possible sound of the singer is the B sound, the information is recorded in the memory (29), and the computer (28) determines the highest sound of the song as the highest sound. , Judge that the difference (pitch) from the singer's highest note is a minor third, and lower the code representing the pitch of each note in the MSC signal by a minor third (3 / D sound is 12 / B / 8 / G sound
Since it is sent to the synthesizer (33), converted to a 5 / E sound by a computer program, the karaoke accompaniment transposed low third minor (3 semitones) lower flows from the speaker (6), and the singer is naturally the best. You can sing with a sound.

Instead of transposing low by 3rd minor, you can transpose 6th higher and make the accompaniment one octave higher than the transposition of 3rd minor, but it is better to program the transposing pitch to be small. However, it is desirable because the feeling of the current song is hard to change.

The "Transposition interval table" on the other page indicates a desirable transposition method, and is input as data or into a mathematical expression into the computer (28). (In the table, it changes to + 6 → -5 and catastrophic, but this feature point may be changed to + 5 → -4, etc.) In the table, the highest note of the song in the original song is the vertical item K, and the singer If the highest note is the horizontal item V, it is necessary to transpose only the number of semitones at the number of intersections between the two. become.

For example, if K = D # sound and V = G sound, +4 transposition,
In other words, it is only necessary to transpose higher by about a quarter semitone. (If the original music is in C minor, transpose to E minor, etc.) In the case of K = F # sound and V = E sound, a transposition of −2, that is, a transposition lower by about two semitones, may be used. (If the original song is in F major, transpose to Sharp D major, etc.) In this way, the tone of the karaoke accompaniment can be adjusted to the vocal range of any singer. As a result of the transposition, the highest tone of one song changed The computer (28) generates a video signal of the character indicating the note name, and in addition to the video signal sent from the reproduction circuit (23) to the receiver (5) through the line (32), the "highest sound is B" in the corner of the screen And so on so that the singer can easily recognize it. (Reproduction circuit (23)
May generate such a video signal. When the reproduction of the recorded information of the track groups (17) and (20) is completed as described above, an end signal included in the outer diameter track of the track group (20) is output through the pickup (24) to the reproduction circuit (23). And pick up (24) the truck (1
Return to the position of 6), the playback circuit (23) and the computer (2
8) etc. return to the initial state, and the rotation of the disc (15) also stops.

Here, the next desired song is input to the keyboard (4) as "A.2".
If you hit the start switch (3) and hit the start switch (3), the pickup (24) reads the track (16) and then the track group (18) The MSC signal is read, then the signals of the track group (21) are read, the video is displayed on the receiver (5), and the karaoke accompaniment transposed from the synthesizer (33) so that the highest sound of the song is the F # sound. The singer is able to sing along to the output and the sound from the speaker (6).

Similarly, any song recorded on the disc (15)
It is converted into a karaoke accompaniment that matches the singer's vocal range and played.

If the highest note of the song matches the highest possible sound of the singer, the karaoke in the recording medium may be designed to be played as it is, or the music of the music synthesizer may be played using the MSC signal as it is. You may do so. (If only the MSC signal is recorded on the medium, the latter is of course the case.) As described above, the time signal generated based on the frame signal generated with the rotation of the disk (15) is used. , MS
By controlling the reading of the C signal from the memory (29),
The video of the receiver (5) and the karaoke can be reliably synchronized.

When making such a laser disc, the images are made by conventional methods. The sound is created manually by the MSC signal and the track (1
7) Put it in (18) (19), use that signal to activate the synthesizer, make sound, and record it along with the video signal on tracks (20) (21) (22), or track (20) (21)
The sound put in (22) may be a recording of a normal orchestra.

Since it takes a long time to manually generate an MSC signal, the following may be performed.

When many people play an orchestra with their own instruments, place one microphone in front of each person, or one microphone for each part of the instrument, and use the multitrack tape recorder to measure the spread sound of each microphone. After that, the playback output voltage of each track is applied to the computer through the A / D converter, and the start time and end time of the sound, the height, the intensity change, the tone, etc. are analyzed, and the MSC signal is automatically output. , And the analysis data of all the tracks may be arranged in time sequence to obtain an MSC signal for one song.

 In addition, various design changes are possible for the above-mentioned parts.

The MSC signal tracks (17), (18), and (19) contained in the laser disk (15) are collectively provided between the tracks (16) and (20).
After reading 6), the designated MSC signal track may be read, and then the video / audio signal track may be read.

Alternatively, immediately after the frame number of each video / audio signal track, before and after the horizontal synchronizing signal, vertical synchronizing signal, blanking signal, etc., an MSC signal corresponding to that time is inserted, and the computer (28) May be sent.

 The encoding format of the MSC signal may be arbitrarily changed.

The horizontal synchronizing signal pulse in the video signal sent from the reproduction circuit (23) to the receiver (5) may be sent to the computer (28), and the number thereof may be counted to generate a time signal.

For VHD karaoke, the format may be almost the same as above, but for video tape, the MSC signal is input before the video / audio signal of each song starts, or each vertical scan or horizontal scan track end, the longitudinal direction of the tape It is placed in a ready-made pitch track or a special track reproduced by an inclined magnetic head.

In sound-only karaoke, a low level is added to the margin before each song.
The MSC signal is recorded, or the MSC signal is recorded so that it can be read only by a dedicated head with an inclined gap. The time signal is generated by operating a timer attached to the playback device.

The lyrics may be displayed in a liquid crystal display or the like at the same time that the character code of the lyrics is inserted into the MSC signal and music is output from the synthesizer. In this case, in addition to magnetic tape without video, compact disk, magnetic disk,
Alternatively, it may be recorded.

As mentioned above, while singing with karaoke or when singing is over, there are only a small audience at home, etc.
Applause is sparse and lonely. So, using a clapping multiplier,
Create lively applause.

When one of the listeners claps near the clapping microphone (8), the output voltage of the pulse sound passes through the limiter (34), enters the clapping multiplier computer (35), and the computer counts the pulses. When counting continuously, several pulse voltages are generated at appropriate intervals for each input pulse (the time interval and intensity may be made slightly irregular by random number control). Is multiplied to the applause of several people, amplified by the amplifier (36), and output from the speaker (9).

Although the sound of the speaker (9) enters the microphone (8), the output voltage is small because the distance to the microphone is so large that the limiter (34) cannot pass and enters the computer (35) and is multiplied. It does not cause howling.

By turning the volume attached to the main unit (1),
The multiplication factor of the clapping sound may be changed.

Attach a piezoelectric element to the wristwatch, transmit the pulse voltage from the piezoelectric element due to the impact accompanying applause on the carrier wave from the transmitter such as radio waves, ultrasonic waves, infrared rays attached to the watch,
You may make it receive with the receiver attached to the main body, and add it to the limiter (34).

Pressing the switch may cause the computer (35) to generate a pulse voltage for a few seconds, but it is less realistic than multiplying the actual applause.

In the MSC signal of the laser disk (15), or
Put the applause start signal at important points in the audio signal and send it from the playback circuit (23) to the computer (35),
The computer (35) may generate a clapping sound when receiving the signal. (It is desirable to attach an automatic applause generation selection switch to the main unit (1) so that the computer (35) works only when it is on. In addition to the clapping sound, a whistle or a flash of light may be generated.

Continuous infrared light with amplitude modulation of several hundred KHz is radiated to a wide range, and a light receiving element that receives the reflected light reflected from the hands of the applause is installed, and the change in the semi-light that changes in intensity due to the applause Amplify the component and convert it to a pulse voltage
May be added to computer (35).

A continuous ultrasonic wave of about 100 KHz is output, a long sound wave reflected by the claps is received by an electrostrictive element, a Doppler shift component included in the output is detected, and converted to a pulse voltage,
May be added to computer (35).

The generation of applause can be triggered by any other signature.

1/10 after the output pulse is output from the computer (35)
For about a second, reduce the sensitivity of the limiter (34) to prevent the sound from the speaker (9) from entering the microphone (8) and send the pulse voltage to the computer (35) to prevent howling, and then limit the limiter. The sensitivity of (34) may be increased, and the applause multiplication may be performed even by applause at a location remote from the microphone (8).

It is desirable that the output voltage pulse waveform of the computer for a clapping multiplier (35) be substantially the same as the pulse waveform of the clapping sound entering the microphone (8).

The present invention can also be used as an exercise training machine for health as follows.

Specify an appropriate song from the keyboard (4), press the key "A" on the keyboard (4) again to enter the exercise training mode, press the start switch (3), and the designated song in the laser disc (15) MSC signal is picked up (2
4) read, then the video and audio tracks are read,
The video is displayed on the receiver (5), and at the same time, the sound of the synthesizer (33) by the MSC signal flows to the speaker (6).

If left untouched, the pickup (24) stops after a few seconds, the image becomes a still image, and the sound stops.

Therefore, when the user goes up or down the stairs of the exercise training machine (10), the screen and music move according to the speed.

When the left foot is put on the tread (13), a voltage pulse is generated in the piezoelectric element (11).

When the right foot is put on the tread (14), a pulse is generated in the piezoelectric element (12).

When the left foot is placed on the tread (14), a pulse is generated in the piezoelectric element (12).

When the right foot is lowered from the tread (14), a pulse is generated at (12), and when the foot is placed on the tread (13), a pulse is generated at (11).

When the left foot is lowered from the tread (14) to the floor, a pulse is generated at (12).

 When the right foot is lowered to the floor, a pulse is generated in (11).

In this way, one cycle of up-and-down movement can be performed by 6 operations, and by repeating the movement, exercise training for health purpose can be performed. However, each time the force applied to the piezoelectric element (11) (12) increases or decreases, a pulse is generated. Voltage output occurs, computer (35)
to go into.

The computer (35) measures the time between pulse voltages, constantly averages several time intervals, finds the average speed,
The value is sent to the reproducing circuit (23) once per second.

The reproduction circuit (23) receives the signal, moves the pickup (24) at a speed proportional to the elevating speed of the training machine (10), and the image of the receiver (5) moves in proportion to the elevating speed. If the scene is taken from the vehicle window, the user feels like walking or running in the outside world, and can stimulate the desire to exercise.

The switching speed of the frame signal entering the computer (28) also changes according to the elevating speed, the period of the time signal generated by the computer (28) also changes, and the tempo of the music output from the synthesizer (33) changes in proportion to the elevating speed .

However, the pitch of the sound changes so as to increase or decrease the rotation speed of the record, so that the music cannot be heard.

You can hold the microphone (7) in your hand, go up and down the stairs, and sing along with the changing karaoke.

The video may be moved in proportion to the elevating speed, and the tempo of the music may be kept constant by controlling the MSC signal with a constant speed time signal generated in the computer (28).

Alternatively, the elevating speed may slightly affect the tempo of music.

When the ascending / descending speed falls below a certain value, the music may be cut off before the next bar appears, and the exercise may be encouraged. Instead of the music, a voice signal such as "do more" may be sent from the computer (37) to the amplifier (27).

Instead of a step-type exercise training machine (10), a bicycle-type or treadmill-type training machine equipped with an AC generator is used, and the AC output is pulsed through a rectifier to be applied to a computer (37). Turn the DC generator, A-
You may make it add to a computer (37) through a D converter.

The accompaniment transposition device, the applause multiplication device, and the exercise training device may be separately used.

The functions of the computers (28), (35), (37) and the like may be integrated in the computer in the reproduction circuit (23).

A laser disk (15) is set on a conventional laser disk reproducing apparatus, the output signal of the pickup is distributed to an adapter according to the present invention, a music synthesizer is operated, and the output is input to an audio signal input terminal of the conventional apparatus. May be sounded.

If stereo sound is recorded on the sound carrier in the composite television signal of the laser disc, karaoke with a range suitable for the average female voice is placed on the right channel, and transposed to the range suitable for the male voice on the left channel. A karaoke may be inserted, and one of two types of karaoke may be selected by a switch for switching between a female voice and a male voice.

In this case, several voice carriers with different frequencies are provided,
Put the karaoke transposed with different pitch difference for each (specify the range of the highest note and the channel to be inserted), and match the singer's highest note on the keyboard (4). And computer (28)
Thus, sound of a suitable channel may be reproduced.

When making such a large number of transposed karaoke, the movement of the conductor's tact is recorded, and several transposed musical scores are used in sequence. Alternatively, as described above, one microphone may be placed in front of each instrument, and after recording on each track, transposition may be performed with a synthesizer.

Each transposed song is modulated by a method such as PCM, FM, AM, etc., a time signal is inserted about once every second, the frequency is increased, and each song is compressed in a very short time. Put it in the track group inside the video / audio signal,
A transposed song suitable for the singer's highest note entered from the keyboard (4) may be recorded in the computer memory first, and transposed karaoke may be reproduced from the memory in synchronization with the reproduction of the video.

Several transposed karaoke songs compressed in a short time are divided into 1/60 second of the original song over time, and they are sequentially arranged in a time-sharing manner, before and after the vertical blanking signal of the video. For each heald scan, one of them may be stored in a memory, and the contents may be reproduced and converted into a sound in 1/60 second.

Put normal video and audio on side A of laser disc,
Put another number of the transposed karaoke compressed as described above on the B side, and play the transposed karaoke that matches the singer's voice in the tuned in from the keyboard (4) at the same time as the video on the A side is played. Is also good.

If the exercise training machine (10) is moved up and down and the output pulse enters the computer (37), the time of about 10 seconds is accumulated for each pulse, and the karaoke reproducing apparatus main body (about 10 times the exercise time) If the power supply current of 1) is energized and a healthy amount of exercise is reached every day, energization for 24 hours may be performed thereafter to stimulate the desire to exercise.

In that case, it is desirable to set the ratio of the addition time to one pulse according to the physical strength of each person, and apply the IC code of each individual to a computer diagnostic machine with a card reader attached to the main unit (1), exercise time, date , Amount of exercise, exercise speed, heart rate during exercise of each person obtained through the telemeter,
Record and analyze electrocardiogram waveforms, etc., spend several days, calculate the appropriate amount of exercise for the person, record it on the IC card, and then put the IC card on the reader and exercise, if you exercise, the appropriate amount of exercise speed and exercise time Is displayed. When the speed falls below the appropriate speed, the receiver (5) and the speaker (6) stop, and when the vehicle moves at the appropriate speed, energization of the main body (1) is guaranteed for a time proportional to the number of pulses. If it is reached, one day of energization may be guaranteed.

In this case, when karaoke is not used, general broadcast may be received by the receiver (5).

In the above-mentioned laser disk (15), the name of the highest note in the original song is written, but in a song where low temperature is important, also note how low the lowest note is from the highest note. May be displayed on the receiver (5) or the like so that the singer can easily input the lowest note name that can be easily output, and if there is a response, the bass may be transposed to a tone that allows easy singing.

In order to use the conventional laser disk karaoke reproducing apparatus and laser disk as they are, the following may be performed.

No image is put on one laser disc, MSC signal,
Or, for each song, insert several hundreds of audio signals consisting of several types of transposed karaoke, make a sound signal disk, and from the keyboard of the adapter for reproducing the sound signal disk, the disk number of the conventional laser disk containing the video, Enter the song number in the disc, the highest note that the singer can put out sequentially, and move the pickup to a position where the signal corresponding to the specified song in the sound signal disc can be played.
Insert the conventional laser disc into the conventional karaoke playback device, type the number of the specified song into its keyboard, press the start switch, the two playback devices will work together, the output signal of the conventional device will be via a cable , Enters a disk playback device for sound signals, and only the video signal is transferred to the receiver (5), and has an appropriate height according to a time signal generated by counting the horizontal synchronization signal or the vertical synchronization signal in the video signal. The transposed karaoke is played and played to the speakers.

If the conventional disk reproducing apparatus has an interface such as a light receiving element for a remote controller, the two reproducing apparatuses are linked only by operating the keyboard of the sound signal disk reproducing apparatus.

If the keyboard of the conventional playback device is arranged in a horizontal line, use a keyboard of the same layout and attach a remote controller that sends a signal to the sound signal disc playback device by infrared rays etc. directly below, and the disc number and highest note name will be It is also possible to hit the keys on the disc, which are arranged vertically, with one finger at the same time to strike the song number in the disc.

In the case of a duet, the highest and lowest notes of the two are typed into the keyboard (4) so that an appropriate transposition is selected.

 In addition, various design changes of the present invention are possible.

By implementing the present invention as described above, when singing with karaoke, the accompaniment can be automatically transposed to match the singer's vocal range. If you transpose, the tempo will not necessarily change, you can sing according to beautiful accompaniment, convert the clapping of a small audience into a large number of clapping, you can excite the atmosphere, and the image according to the movement speed The rate of change of music and music is automatically changed, and there is an advantage that a karaoke system can be obtained, which can be used for an exercise training machine that can increase exercise motivation.

[Brief description of the drawings]

FIG. 1 is a front view of a karaoke system embodying the present invention.
FIG. 2 is a plan view thereof. FIG. 3 is an enlarged plan view of a laser disk used in the karaoke system. FIG. 4 is a block diagram of an electric circuit.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G10K 51/04 G09B 15/00

Claims (3)

(57) [Claims] 1. A reproducing apparatus (23) for reading a karaoke song from a recording medium on which a karaoke song containing a tone signal having the highest note name is recorded, an identifier of a desired karaoke song, A keyboard (4) for inputting note names, a music synthesizer (33) for outputting karaoke accompaniment based on musical tone signals, a note name of the highest note input from the keyboard (4), and an identifier of a desired karaoke song A first computer which calculates a pitch difference between the specified tone signal and the highest note of the tone signal, modifies a pitch of the tone signal by the pitch difference, and outputs the modified tone signal to the music synthesizer (33); A karaoke system with 28). 2. A first sensor (8) for detecting a clapping sound and a hand movement accompanying the applause and generating a first output pulse, and generating a pulse several times as large as the first output pulse. 2. The karaoke system according to claim 1, further comprising a second computer (35) that generates a clapping sound based on several times the number of pulses. 3. 3. A second sensor for detecting a motion of a human and generating a second output pulse, and controlling a reproduction speed of a reproduction device based on the second pulse. The karaoke system according to claim 1, further comprising a third computer (37) that performs the operation.