JP2666240B2 - Karaoke playback device with image display function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called graphic karaoke reproducing apparatus using a compact disk (hereinafter referred to as a CD) or the like.

[0002]

2. Description of the Related Art A conventional graphic karaoke reproducing apparatus using a CD or the like generally displays characters and figures such as lyrics on a display of a television receiver or the like in accordance with the progress of accompaniment music. At the same time, the color of characters such as lyrics is changed sequentially.

[0003]

However, it is difficult to determine whether or not the singer's pitch is correct, or to grasp the rhythm or predict the next pitch in the case of a song that is not particularly known. Was. SUMMARY OF THE INVENTION An object of the present invention is to provide a karaoke reproducing apparatus with an image display function that can determine the correctness of the pitch of a singer and easily understand the rhythm and pitch of a song.

[0004]

In order to solve the above-mentioned problems, the present invention provides a musical score signal based on a reproduced signal of accompaniment music.
Musical signal generator (11) to generate and microphone
A singing note signal is generated based on the voice signal input to (7).
Musical note signal generator (14) to generate, musical score signal and singing voice
An adder (15) for adding a sign signal;
A video signal converter (1) for converting an output signal into a video signal
9) and the video signal output from the video signal converter (19).
Displays an image in which music notes and singing notes are superimposed by number.
Image display function provided with a display (20) for displaying
Musical notes and songs displayed on the karaoke playback device
If the vocal notes do not match, replace the singing notes with the score notes.
Are characterized by blinking display in different colors .

[0005]

[Action] The reproduced signal of the accompaniment music is a score signal generator (11).
To generate a score signal. This score signal is input to a video signal converter (19) and is converted into a video signal. Therefore, the reproduction signal of the musical accompaniment is converted into a video signal which displays the musical note score. Furthermore, voice signals such as singing voices
A singing note signal is input to a note signal generator (14) , and the singing note signal and the score signal are added to an adder.
It is added in (15) . The added singing note signal and score signal are input to the video signal converter (19) and are converted into video signals. Accordingly, an image in which the musical score note and the singing note are superimposed is obtained.

[0006]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a configuration diagram of an example of a karaoke reproducing apparatus with an image display function according to the present invention, FIG. 2 is a configuration diagram of an example of the subcode, FIG. 3 is an operation explanatory diagram of an example of the image memory, and FIG. Schematic diagram of an example of the screen, FIG.
5 is a flowchart showing an example of the operation of the control unit.

In this embodiment, a CD player is used as a device for playing back accompaniment music or the like. However, the present invention is not limited to a CD player, and other devices for converting a digital audio signal into an analog signal and playing it back, for example, a digital device. -An audio tape recorder (DAT) or an optical disk reproducing device may be used.

In FIG. 1, a karaoke reproducing apparatus 1 with an image display function includes a karaoke CD 2, a pickup 3 for detecting digital signals such as accompaniment music from the CD 2, and a digital signal detected by the pickup 3 as musical sound data (main sound data). A signal data) and a musical score data (subcode data); a D / A converter 5 for converting the tone data into an analog signal; and an output signal of the D / A converter 5. An amplifier 6; an audio adder 9 for adding an output signal of the amplifier 6 to an audio signal such as a singing voice input from a microphone 7 via the amplifier 8;
And a speaker 10 for converting the output signal into a sound, a sound reproducing unit is constituted.

On the other hand, a score signal generator 11 for generating a score signal based on the score data, and a filter 12 for removing noise or the like from the audio signal output from the microphone 7
A frequency discriminator 13 for discriminating the frequency of the output signal of the filter 12, a singing note signal generator 14 for generating a singing note signal based on the discriminated frequency, and an output from the singing note signal generator 14. Sign adder 15 for adding the singing note signal to be output and the score signal output from the score signal generator 11, an image memory 16 for writing the output signal of the adder 15, and the score signal generator 1
1. The singing note signal generator 14 and CLUT (Col
or Look Up Table) a control unit 18 for controlling a memory 17, the image memory 16 and the CLU
An image display unit is constituted by a video signal converter 19 for converting the contents of the T memory 17 into a video signal, and a display 20 for displaying an output signal of the video signal converter 19 as an image.

Next, the sub-code will be described briefly.
The operation will be described together. FIG. 2A shows a configuration of one frame. One frame is composed of a frame synchronization signal (FS), a symbol 0 called a subcode, and symbols 1 to 32 representing music data, and has a total of 588 channel bits. Thus, a subcode is provided for each frame. This subcode is P, Q, R, S, T,
It is formed by 8 bits of U, V and W. FIG. 1B shows only one subcode extracted for each frame. One block is composed of 98 frames. Also, since one block has a frequency of 75 Hz, the period = (1/75) /4=0.00333 ... That is, the period of one pack (PACK) is approximately 3.3 mse.
c. become.

FIG. 1C shows a pack data format, in which a data field (DATA FIELD) is defined by a mode (MODE) and an item (ITEM). Conventionally, MODE = 1 and ITEM = 1 are defined as a TV (television) graphics mode, but in the present invention, MODE = 1 and ITEM = 2 are defined as a TV score graphics mode. In the present invention, DATA FIE
At the head of the LD, a new command “current positioning” containing current note base (x, y) data is provided.

When the control unit 18 detects that the instruction "current positioning" has occurred in the subcode, the control unit 18 writes the current note base (x, y) into the memory current position base m (x, y). . That is, m (x, y) ← (x, y)

Next, the image memory 16 is sent by another instruction.
The musical score signal is written into the musical score. The image memory 16
It is composed of 18 × 50 fonts and one font is composed of 6 × 12 pixels. Also, 4 bits are used per pixel and one of 16 color numbers is entered.

According to FIG. 3, as the song progresses, EOR
The musical note changes from blue to pink by the WRITE command (a kind of write command), so that the singer can know the current note position. In the figure, "la", "shi",
"Do" is pink and "mi" is blue.

On the other hand, a voice signal such as a singing voice input to the microphone 7 passes through the filter 12 and the frequency discriminator 13, and a pitch Z is determined. Next, the adder 15 adds the pitch Z to the pitch address y of the current position base memory m (x, y), and adds the pitch of the voice signal of the singer or the like to the memory / single note V (x, y + z). Write. V (x, y + z) ← (x, y + z)

Next, m (x, y) and V (x, y + z) are added, and the musical score and the musical note are superimposed on the display 20 as shown in FIG. According to FIG. 4, the note of the musical score (that is, the note of the accompaniment music) is "do", while the singing note is "mi", so that the shift in the pitch can be known from the image. At this time, as shown in the figure, when the note of the score (that is, the note of the accompaniment music) and the singing note do not match on the staff notation, the score note is displayed in pink and the singing note is displayed.
Displayed in red flashing .

FIG. 5 is a flowchart illustrating the above-described operation. FIG. 5 mainly shows the control unit 1.
In step S1, the control unit 18 first constructs one pack of subcodes based on the subcode data output from the decoder 4. Next, the instruction is decoded in S2,
Proceeding to S3, it is checked whether or not this command is a "current positioning" command. If this command, the process proceeds to S4, where the current note base (x, y) is written to the memory current position base m (x, y). . Further, the process proceeds to S5, where the pitch Z is added to the pitch address y of the current position base memory m (x, y), and the pitch of the voice signal of the singer or the like is written in the memory / singing note V (x, y + z). . Next, m
(X, y) and V (x, y + z) are added and input to the image memory 16. Next, in step S7, the CLUT memory 17 colors the musical score and note signals written in the image memory 16 based on the control signal of the control unit 18, and inputs the colors to the video signal converter 19. Then, the score and the note are displayed on the display 20, and the process returns to S1. S3
If the command is not a "current positioning" command, the flow advances to S8 to execute a predetermined command, and then returns to S1.

As described above, according to the present invention, since the musical score is displayed on the display, the singer can predict the next pitch. In addition, since the singer's singing note is superimposed on the score, the deviation from the correct pitch can be visually confirmed.

[0019]

According to the karaoke reproducing apparatus with the image display function according to the present invention described in detail above, the musical score notes and singing of the accompaniment music are performed.
An image in which voice notes are superimposed is displayed on the display, and the displayed musical note and singing note do not match.
Singing note flashes in a different color than the score
Since display, singer can be confirmed remarkably visually the deviation of the correct pitch.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an example of a karaoke reproducing apparatus with an image display function according to the present invention.

FIG. 2 is a configuration diagram of an example of the subcode.

FIG. 3 is an operation explanatory diagram of an example of the image memory.

FIG. 4 is a schematic diagram of an example of the display screen.

FIG. 5 is a flowchart showing an example of the operation of the control unit.

[Explanation of symbols]

1 Karaoke playback device with image display function 4 Decoder 7
... Mic (microphone) 11 Music score signal generator 1
3 ... frequency discriminator, 14 ... singing voice note signal generator (note signal
No. generator), 15 ... code adder (adder), 16 ... image memory, 17 ... CLUT memory, 18 ... controller, 19 ...
Video signal converter.

Claims (1)

(57) [Claims] A musical score signal based on a reproduced signal of accompaniment music.
Music signal generator (11) for generating a vocal signal and a song based on a voice signal input to a microphone (7).
A note signal generator (14) for generating a voice note signal, an adder (15) for adding a score signal and a singing note signal, and a video signal for converting an output signal of the adder (15) into a video signal.
(E) a video signal converter (19) and a video signal output from the video signal converter (19)
Displaying an image in which music notes and singing notes are superimposed
A karaoke playback device with an image display function provided with a display (20) , when a displayed musical score note does not match a singing note.
Makes the singing notes blink in a different color than the music notes.
Karaoke playback device with image display function.