JP3336504B2 - Karaoke pitch control system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a laser disk,
The present invention relates to a karaoke pitch control system using a magnetic tape or the like.

[0002]

2. Description of the Related Art There is a karaoke apparatus with a key controller that can raise and lower the pitch (tone, pitch, key) of a sound output from a karaoke reproducing apparatus in order to match the singing voice without changing the playing speed. However, there is a disadvantage that the operator must repeatedly press and adjust the key switch to adjust to the pitch of the voice, and as a countermeasure, Japanese Patent Laid-Open No. 4-073695 and Japanese Utility Model Laid-Open No. 4-114100 are disclosed. No. 2896395 (inventor / applicant, Akihiro Fujimura)

[0003]

In these, the highest note name of the song in the original karaoke is entered in some way,
The singer automatically or artificially determines the highest possible tone name from the singing voice input to the microphone, inputs the value, and automatically determines the karaoke pitch from both values so that the singer can easily sing. The transposition method is described.

[0004] However, when the singer leaves the instrument,
The name of the highest note judged over a considerable amount of time is also forgotten and cannot be used for other instruments. The present invention solves such a problem.

[0005] The present invention also provides a calculation formula for obtaining a high-speed answer for the determination.

[0006]

[Means for Solving the Problems] The highest note name of a song accompanying karaoke is recorded on an information medium such as a laser disk or a magnetic tape on which karaoke is recorded, or a card attached to the karaoke. A conventional karaoke player that can raise and lower the pitch of the sound without changing the speed, and a card reader that records the highest note that can be issued by the singer and inputs it to the karaoke device is automatically provided. The formula (computer program) that can calculate the transposition pitch that eliminates the difference between the two is used.

[0007]

1 and 2 show a front view and a plan view of a reproducing apparatus of a laser disk karaoke system embodying the present invention.
Is the body. 2 is a monitor receiver on the upper surface. 3 is a laser disk slot. 4 is the karaoke highest note recording card slot. 5 is the singer's highest note name recording card slot. Reference numeral 6 denotes a karaoke highest note name input mode switch.
7 is a singer's highest note name input mode switch. 8 is a start switch. 9 is a keyboard. Reference numeral 10 denotes a keyboard for manually raising and lowering the pitch by semitones. 11 is a speaker. Reference numeral 12 denotes a microphone.

FIG. 3 is an enlarged plan view of a laser disk used in this system, and 13 is a laser disk body. 1
4 is the center hole. Reference numeral 15 denotes a track containing an index signal in the signal track. Reference numeral 16 denotes a track in which the highest note name of a song at the time of recording each song stored on the disk is recorded in a binary number or the like. Tracks 17, 18 and 19 are recorded with television signals composed of karaoke and video for each song. (Each track is composed of a set of fine concentric tracks.) FIG. 4 shows the highest pitch name recording card of a magnetic card type karaoke recording the highest pitch name of each song in a conventional laser disk without the track 16. In the enlarged plan view,
20 is a card body. Reference numeral 21 denotes a recording track of the highest note name recorded on the recording track.

FIG. 5 is an enlarged plan view of a singer's highest note name recording card in which the highest singer's highest note name is recorded by a mark sheet method, and 22 is a card body. Reference numeral 23 denotes a numerical value of 1 to 12 printed thereon and a blank column. In the figure, 5 (F sound) is marked.

FIG. 6 is a block diagram showing an outline of an electric circuit of the above system. A pickup 24 sends a laser beam to a laser disk and receives the reflected light. Reference numeral 25 denotes an electronic circuit including a computer and the like that controls the pickup, sends a video signal being output to the monitor receiver 2, and sends an audio signal to the pitch control circuit 26. 27 is a transposition calculation circuit. 28 is the highest note memory of karaoke. 29 is the singer's highest note name memory. 30 is a karaoke highest note name card reader. 31 is a singer's highest note name card reader. 32 is the highest tone printer. 33 is a voice pitch determination circuit.

Next, an outline of the manufacturing method, usage method, operation and the like of this system will be described.

When singing along with one karaoke accompaniment, the name of the highest note that the singer must give can be easily known by looking at the music score.
It is digitized and set as an address code indicating the position where the corresponding song is located.
Record in 6. (It may be recorded on the track 15 or another track.) The note name corresponding to this numerical value is described below in parentheses. (Same as the display of the key of the keyboard 9) 0 (C) 1 (C #) 2 (D) 3 (D #) 4 (E) 5 (F) 6 (F #) 7 (G) 8 (G # 9 (A) 10 (A #) 11 (B) The card 20 which records the highest note name of each song in a large number of laser discs is stored in a laser disc sold by each laser disc maker in the past. The disk number of each song, the address (A-5, B-11, etc.) of each song on the disk, and the highest note name of the corresponding song are recorded. This is used when playing back.

The singer's highest note name recording card 22 is used to write the highest note name that the singer himself can easily issue.
What is necessary is just to fill in automatically as mentioned later.

At the time of use, first, when the laser disk 13 is pushed into the slot 3, the internal drive device operates and FIG.
A pickup 24 (not shown) reads the control signal of the track 15, sends the control signal to an electronic circuit 25, and records it in a memory in the circuit 25.

Next, the card 22 is inserted into the card slot 5.
Is inserted, a reader 31 such as an internal mark sheet reader operates to read that the number 5 is marked in the blank 23 of the card. The singer's highest note name memory 29 is recorded via the electronic circuit 25.

Next, the address of the desired music contained in the laser disk 13 is entered into the keyboard 9 and recorded in the electronic circuit 25.

Next, when the start switch 8 is pressed, the pickup 24 reads the track 16 and finds the highest tone name corresponding to the tune at the address entered into the keyboard 9, and sends the karaoke song to the electronic circuit 25. The highest tone name memory 28 is recorded, the pickup 24 goes to one of the tracks 17 to 19 at the designated address, sends the contents to the electronic circuit 25, and the video signal is sent to the monitor receiver 2, and the video is reflected. , Voice signal is pitch control circuit 2
Sent to 6.

Based on the contents of the karaoke highest note name memory 28 and the contents of the singer's highest note name memory 29, the tone calculation circuit 27 determines how much the pitch of the audio signal sent from the pickup 24 is raised or lowered. Is sent to the control terminal of the pitch control circuit 26, and the pitch control circuit 2
6 raises and lowers the karaoke pitch based on the audio signal picked up by the pickup 24 in accordance with the command of the tone calculation circuit 27.

The pitch control circuit 26 operates similarly to a conventional karaoke with a key controller (pitch controller).
Pressing the key "+1" on the manual pitch control keyboard 10 raises the pitch by one semitone. That is, the frequency (pitch) of the sound is made 1.06 times. (To raise the average rate by a semitone, it is sufficient to increase the power by a factor of 12 times the root, but it is not necessary to strictly set that value.) For this purpose, the audio signal is digitized by an AD converter, The pitch is shifted by a semitone by repeating the process of storing the contents of the memory in the memory and playing back the contents of the memory at a speed of 1.06 times in a short period of time, and replenishing the blank generated during the playback cycle with the repetitive waveform immediately before. The karaoke performance just raised flows from the speaker 11. The singer sings into the microphone 12 while watching the image of the receiver 2.

If you press +1 on the keyboard 10, two semitones,
To increase the karaoke pitch, the reproduction speed of the audio signal from the digital memory is intermittently reproduced at 1.12 times, and the resulting blank portion is also filled with the immediately preceding repetitive reproduction.

Hereinafter, similarly, at +3, it is 1.19 times, and at +4,
In this case, the reproduction speed is 1.26 times, that of +5 is 1.33 times, and that of +6 is 1.41 times.

If -1 is pressed, the intermittent playback speed from the memory is increased 0.94 times, and the portion overlapping the next cycle is cut off.
Flows from one.

At -2, it is 0.89 times, and at -3, it is 0.84 times.
-4 times, 0.79 times at -4, 0.75 times at -5,
At -6, the pitch is lowered by a multiple of a semitone, such as by 0.71 times.

In the transposition calculating circuit 27, the value stored in the highest note name memory 28 of karaoke, the karaoke value is K, the value recorded in the highest note name memory 29 of the singer, the singer value is V, and the multiple value of the semitone interval to raise and lower is X. And the following calculation indicated by the BASIC program is performed.

10 X = V−K 20 IF X> 6 THEN X = V−K−12 30 IF X <−5 THEN X = V−K + 12 That is, if the karaoke value K is lower than the singer value V,
The transposed semitone multiple value X becomes an integer of +, enters the pitch control circuit 26, raises the pitch of the audio signal, and transposes the karaoke to a condition where the singer can easily sing, similarly to the + value sent from the keyboard 10. I do.

If K is greater than V, X is an integer minus-and enters circuit 26 to lower the pitch of the audio signal.

However, if X is too large, if you transpose high as it is, the feeling of the original karaoke song will be lost,
If V is greater than 6 semitones, 12 is subtracted from X to transpose to the same tone lower by one octave.

If X is smaller than -5, "12" is added to transpose the tone to the same tone higher by one octave.

FIG. 7 shows a transposed pitch table calculated based on such a principle (although the principle may be slightly changed). (A table is recorded in advance in the transposition calculation circuit 27 or the like, and K and V
Is input, the X at the intersection may be output. The value of X is displayed at the corner of the screen of the receiver 2. )
As obtained from the table and the formula, for example, if the karaoke value K is 3 (D # sound) and the singer value V is 5 (F sound), the transposed pitch X is 2 semitones, and the karaoke pitch is only that much. If K is 9 (sound A) and V is 4 (sound E), the transposed pitch X is -5 semitones, and the karaoke pitch is lowered accordingly.

In this way, the karaoke pitch is automatically transposed to a singer's singable height.

The conventional laser disk has a track 1
As shown in FIG. 6, the number indicating the highest note name of karaoke is not included, but after such a laser disc is inserted into the slot 3, after the highest note name recording card 20 is inserted into the slot 4, the internal The reader 30 operates to store the highest note names of many songs in the built-in memory.

Next, the singer's highest note name recording card 22 is inserted into the slot 5 and stored in the memory 29.

Next, when the number of the laser disk and the address of the designated karaoke in the disk are entered into the keyboard 9 and the start switch 8 is pressed, the corresponding number in the stored contents of the reader 30 is read by the computer in the electronic circuit 25. The search is performed, and the highest note name of the music is transferred to the memory 28.

In the same manner as described above, the pitch to be transposed is calculated by the transposition calculating circuit 27 from the numerical values of the memories 28 and 29, and the karaoke transposed by the operation of the pitch control circuit 26 flows from the speaker 11.

If the highest note name of the corresponding song is written on the label, jacket, pamphlet or the like of the disc by printing without the card 20, the highest note name input mode switch 6 of karaoke is pressed, and the value is inputted from the keyboard 9. And store it in the memory 28.

When the card 22 is not used, the singer's highest note name input mode switch 7 is pressed, the value is entered from the keyboard 9 and stored in the memory 29.

In these cases as well, when the start switch 8 is pressed, the same operation as described above is performed.

If the singer's highest note name is not known, the switches 6 and 7 are pressed simultaneously and the microphone 12 is turned on.
When the highest sound that can be produced by the singer is generated, the frequency of the sound is determined by the voice pitch determination circuit 33, the name of the sound is further determined, the result is displayed on the receiver 2, and the blank card 22 is displayed.
Is in the entrance 4, the printer 32
Is written on the card and stored in the memory 29. Here, if the start switch 8 is pressed, the automatically transposed karaoke is played. The card 22 can be used at the next use of karaoke.

The cards 20 and 22 may be a card using a barcode, an IC card, or the like.

The voice pitch determination circuit 33 constantly determines the pitch of the sound at each point in time when the singer sings one song, updates and records the highest pitch of the pitch in a memory, and stores the last remaining value. May be written on the card 22.

In karaoke using a recording tape or a video tape, an AC signal of 20 Hz or less, which cannot be heard by human ears, is placed in the space immediately before each song on one tape.
The highest note name of the song in the song that comes immediately after is recorded, and the signal is extracted by a band-pass filter or a low-pass filter provided in the playback device, and the highest karaoke memory 2 is stored.
8 may be stored.

The functions of the circuits 26 to 29 and 33 may be performed by a computer in the electronic circuit 25.

In a box separate from the main body 1, a reader for the card 20 recording the highest note name of the song accompanying the karaoke or a keyboard for manually inputting the value is provided, and the highest note that the singer can output is provided. A reader for the name record card 22 is also provided therein, and a transposition calculating circuit 27 is provided by a built-in computer.
The same calculation as above is performed, and “+3” and “−” are displayed on the display.
A calculated value such as "2" may be displayed and entered into a key controller of a conventional device so that accurate transposition can be performed with one touch. (If an interface is connected to the computer in the conventional device, connect this box with a cable and link it together.) In the index of the song on the laser disc printed on paper, the highest sound of the song Write the name of the singer, print the above-mentioned transposition pitch table on paper, and if you know the highest possible pitch name of the singer, draw the transposition pitch in the table, and use the conventional karaoke device with key controller May be operated with one touch.

The highest note that can be given by the singer is also a magnetic card,
The names of many people may be recorded on a floppy disk or the like and recorded on a single card or the like by an input / output device using a personal computer or the like, and may be extracted as needed.

This personal computer may be connected to a conventional karaoke device with a key controller.

In addition to the bottle kept at the restaurant and the like, the highest sound name that can be put out by each individual obtained with this device is "VM3".
You may write "VM7" or the like.

Various other design changes are possible.

[0048] The applicant of the present application has disclosed the aforementioned Patent No. 289.
No. 6395 (Japanese Patent Application No. 2-034156, "Karaoke System") describes a transposition table.
It was obtained by trial and error. It takes about a year,
A formula as described herein has been obtained.

When this formula is used, a solution can be obtained at a higher speed than in the case of collation using a table when processing a large amount of data.

[0050]

As described above, according to the present invention, the highest possible tone name of each singer determined by taking a considerable number of moves is recorded on a card, and thereafter, the same card is transferred to another device. By applying the present invention, it is possible to easily perform the optimal transposition and enjoy karaoke, and to quickly calculate the optimal transposition in the device.

[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 present invention.

FIG. 4 is an enlarged plan view of a magnetic card on which the highest note name in a song accompanying karaoke is recorded.

FIG. 5 is an enlarged plan view of a highest note name recording card that can be issued by a singer.

FIG. 6 is a block diagram of an electric circuit.

FIG. 7 is a transposition pitch table.

[Explanation of symbols]

 1 body. 2 Monitor receiver. 3 Laser disk slot. 4 Card 20 slot. 5 Card 22 slot. 9 Keyboard. 10 Keyboard. 11 speakers. 12 microphones. 13 Laser disc. 16 The record track of the highest note of a song accompanying karaoke. 17 Karaoke television signal track. 20 Magnetic card that records the highest note of a song accompanying karaoke. 22 A record card with the highest possible name of a singer. 24 Laser disk reading pickup. 25 Electronic circuit. 26 Pitch control circuit. 27 Transposition calculation circuit. 28 Highest note name memory of songs accompanying karaoke. 29 The highest note name memory that a singer can give.

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields investigated (Int.Cl. ⁷ , DB name) G10L 21/04 G09B 15/00 G10K 15/04 302 G11B 20/02 G11C 27/00 G10H 1/00

Claims (1)

(57) [Claims] 1. A karaoke pitch control system comprising input means, reading means, control means, and pitch control means, wherein the input means is capable of inputting an integer K indicating the highest note name of a song of a song. The means reads, from the storage medium, an integer V indicating the highest possible pitch name of the singer, and the control means determines an integer X indicating the number of semitones in the following processing. When V−K <= 6, X = V−K is determined, when V−K> 6, X = V−K−12 is determined, and when V−K <−5, Is determined as X = V−K + 12, and the pitch control means controls the pitch of the input audio signal in semitone units based on the integer X determined by the control means.