JPH0325868B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention reproduces and amplifies music signals such as musical instruments recorded on a recording medium, and when a user sings along with the music signals, the music signals are mixed with the music signals and amplified. The present invention relates to a musical performance device.

Conventional configuration and its problems As a field of audio equipment, music signals such as musical instruments recorded on recording media are played back and amplified.
When a user sings along with this, there is a device that mixes it with the music signal and amplifies the sound.

This is commonly called a ``karaoke device,'' and is widely used for home or business use. (Hereinafter, this "karaoke device" will be referred to as a performance device.) However, with conventional performance devices, it is difficult to start singing when the user is not familiar with singing or when the length of the intro part of the song is difficult to understand. There were times when the playback/amplification sound of the music signal and the user's singing voice were out of sync, causing an unpleasant experience.

Purpose of the invention The present invention solves the above-mentioned conventional problems.
To provide a performance device that uses a generally commercially available audio multiplex recording medium to indicate the starting position of a song so that the user can easily know the starting position of the song, and also displays the actual starting position of the song. The purpose is to

Note that audio multiplexing recording media, in which the singer's vocal signal is recorded on the first track and the music signal on the second track, have recently become popular as they are suitable for singing practice. I've been doing it. This audio multiplex recording medium is hereinafter referred to as an "audio multiplex recording medium."

Structure of the Invention The present invention comprises a first reproducing means for reproducing a vocal signal of a singer or the like recorded on a first track of an audio multiplex recording medium, and a second reproducing means for reproducing a music signal recorded on a second track. means for reproducing the
a first amplifying means for amplifying a microphone signal; a vocal signal presence/absence determining means for determining the presence or absence of an output of the first reproduction means; a microphone signal presence/absence determining means for determining the presence or absence of the first amplification means; This performance device is equipped with a display body drive setting means that lights up a display body based on the output of the signal presence/absence determination means and the output of the microphone signal presence/absence determination means, and the display body is driven by detecting a vocal signal and a microphone signal. By doing so, the user can visually determine the starting position of the song and the actual position where the user started singing.

DESCRIPTION OF EMBODIMENTS FIG. 1 is a plan view of an audio multiplex recording medium 1 that is generally available on the market. 2 is a first track on which a vocal signal of a singer or the like is recorded, and 3 is a second track on which a music signal is recorded.

FIG. 2 is a block diagram of essential parts showing an embodiment of the musical performance apparatus of the present invention. 4 is a first reproducing means for reproducing the vocal signal recorded on the first track 2, 5 is a second reproducing means for reproducing the music signal recorded on the second track, and 6 is a microphone signal. a first amplification means for amplifying;
A second amplifying means 7 mixes and amplifies the respective outputs of the first reproducing means, the second reproducing means 5 and the first amplifying means 6, and drives the speaker 8.

Reference numeral 9 denotes a first signal presence/absence determination means for determining whether a vocal signal is recorded on the first track 2 based on the output of the first reproduction means 4; a second signal presence/absence determining means for determining whether or not it is input;
11 drives the display unit 12 to a state that indicates that a vocal signal is being reproduced when it is determined that a vocal signal is being recorded based on the output of the first signal presence/absence determining unit; This display drive setting means drives the display 12 to a state indicating that sound is being input to the microphone when it is determined that sound is being input to the microphone based on the output of the signal presence/absence determining means.

FIG. 3 is a specific circuit diagram of this embodiment, in which the functions of determining the presence or absence of the vocal signal and setting the drive of the display body are realized by a microcomputer.

The first reproducing means 4 is composed of a magnetic head 21 and an amplifier 22.

The second reproducing means 5 is composed of a magnetic head 23 and an amplifier 24. The first amplification means 6 is composed of a microphone 25 and an amplifier 26.

The first reproducing means 4, the second reproducing means 5 and the first amplifying means 6 have volumes 27 and 2, respectively.
8 and 29 to the second amplifying means 7. Reference numeral 31 is a first rectifier circuit connected to the output of the first reproducing means 4, and reference numeral 32 is a first waveform shaping circuit, which is composed of a Schmitt circuit and the like. 33 is a second rectifier circuit connected to the output of the first amplifying means 6;
4 is a second waveform shaping circuit composed of a Schmitt circuit and the like.

A microcomputer 35 drives the display 12 according to the outputs of the two waveform shaping circuits 32 and 34. In this embodiment, the display 12 is a 7-segment digital numeric display. This is also used as a numeric display to display other numerical data.For example, recently, some musical instruments have been equipped with a scoring function to score how well and how poorly they sing. The numeric display is not used during performance, so you can use it.

It has the above configuration, and its operation will be explained below.

First, when the pack containing the audio multiplex recording medium 1 is attached to the performance device, the magnetic head 21 is placed in the first position.
The magnetic head 23 is brought into contact with the first track 2 and the second track 3, respectively. When the performance starts, the vocal signal of the first track 2 is converted into an electric signal by the magnetic head 21, amplified by the amplifier 22, and supplied to the second amplifying means 7 through the volume 27.

At the same time, the music signal of the second track 3 is converted into an electric signal by the magnetic head 23, amplified by the amplifier 24, and supplied to the second amplifying means 7 through the volume 28. The second amplifying means 7 amplifies the signals supplied from the first reproducing means 4 and the second reproducing means 5 to drive the speaker 8.

The user listens to music and vocals amplified from the speaker 8 and sings along with it into the microphone 25.

The signal from the microphone 25 is amplified by an amplifier 26 and supplied to the second amplifying means 7 via a volume. As a result, the vocal signal of the first track 2, the music signal of the second track 3, and the song sung by the user are mixed and amplified from the speaker 8. The amount of mixing of these sounds can be adjusted using the volumes 27, 28, and 29, so the level at which the vocal signal is amplified from the speaker 8 can be changed according to the user's level of proficiency, allowing for sufficient singing practice. . When the user has mastered the song, it is possible to prevent the vocal signal from being amplified from the speaker 8 at all.

However, when singing the vocal signal of a singer recorded on the first track without amplifying it from speaker 8, even if you are familiar with the song, you may get stuck at the beginning of the song due to the wrong length of the intro. There is. In order to eliminate such inconveniences, the performance device of the present invention is configured to visually display the starting position of a song, and to enable the user to recognize whether or not he or she has actually started singing at the correct starting position.
The operation of the song start position display mechanism will be explained below using the flowcharts of FIGS. 3 and 4.

First, when the performance starts, no vocal signal is recorded on the first track 2 during the intro portion of the song, and no signal is output from the magnetic head 21. Therefore, no signal is supplied from the first reproducing means 4 to the first rectifying circuit 31 and the second amplifying means 7. Then, only the music signal recorded on the second track 3 is reproduced by the second reproduction means, amplified by the second amplification means 7, and amplified from the speaker 8.

Next, when the intro part of the song ends and the song begins, a vocal signal is recorded in the first track 2, so this signal is reproduced by the first reproduction means 4 and supplied to the first rectifier circuit 31. The signal is waveform-shaped by the first waveform shaping circuit 32 and supplied to the microcomputer 35. The display body 12 is driven by the signal supplied to the microcomputer 35.

Further, when the user sings into the microphone 25, the user's voice signal is transmitted to the first amplifying means 6.
is amplified and supplied to the second rectifier circuit 33, and the second
The waveform is shaped by the waveform shaping circuit 34 and supplied to the microcomputer 35 to drive the display 12.

The above operation will be explained using the flowchart of FIG. 4. First, in step 41, it is determined whether or not there is a vocal signal on the first track 2. If there is a vocal signal, the process proceeds to step 42; otherwise, the process proceeds to step 53.

Now that the intro of the song has ended and the vocal signal at the beginning of the song is being reproduced, the process advances to step 42, where it is determined whether or not there is a microphone signal from the first amplification means 6. If the user has already started singing at the beginning of the song, proceed to step 43.
The microcomputer 35 instructs the display 12 so that the third digit of the number counter on the display 12 displays "1", and if the user has not started singing yet, the process proceeds to step 44, and the number display on the display 12 The microcomputer 35 instructs the display 12 to display "0" in the third digit.

Next, the process proceeds to step 45, where it is determined whether there is any further vocal signal. Since the vocal signal is currently being reproduced, the process advances to step 46, where it is determined whether or not there is a microphone signal. If the user is singing, the process advances to step 47, and the microcomputer causes the numeric display of the display unit 12 to display "1" as the second digit instead of "1" or "0" as the third digit. 35 to the display unit 12, and if the user is not singing, the process advances to step 48, where the third digit of the numerical counter on the display unit 12 is displayed as “1” or “0”, and the second digit is “0”. The microcomputer 35 instructs the display 12 to display the following.

Next, the process further advances to step 49, and it is determined whether or not there is a vocal signal. Since the vocal signal continues to be played, proceed to step 50.
Determine whether there is a microphone signal. If the user is singing, the process advances to step 51, and the second digit of the number display on the display unit 12 is "1" or "1".
The microcomputer 35 instructs the display unit 12 to display ``1'' or ``0'' in the second digit of the numeric display of the display unit 12 at step 52 if the user is not singing. 1
The microcomputer 35 instructs the display 12 to display "0" in the digit.

Similarly, while the vocal signal is being played, step 41 → step 42 → step 43 or step 44 → step 45 → step 46 → step
47 or step 48 → step 49 → step 50 →
Repeat step 51 or step 52.

Therefore, while the vocal signal is being reproduced, the display "1" or "0" moves from the third digit to the second digit and from the second digit to the first digit on the numeric display of the display unit 12. is repeated, and since the vocal signal is being played back, the user can easily tell that it is the singing position. Therefore, the user only needs to start singing in accordance with the display on the display 12, and if the starting position of the vocal signal and the user's starting position match, the number 3 on the display 12 will be displayed.
The first digit displayed is "1", and conversely, if the starting position of the vocal signal and the starting position of the user do not match, the number indicator 3 on the display 12 will be displayed.
Since the first digit is displayed as "0", the user can recognize that he or she has started singing at the correct starting position. Note that when the vocal signal is interrupted, such as between each measure of a song, step 41, 45,
In each step 49, it is determined that there is no vocal signal, and the process proceeds to step 53, where it is determined whether or not there is a microphone signal. If there is a microphone signal, in step 54, "0'' is displayed, indicating that there is no vocal signal, only a microphone signal. Also, if there is no microphone signal in step 53, step
The process proceeds to step 55, where the display of the numeric display on the display body 12 is stopped, the light is turned off, and the process returns to step 41.

Then, when the next measure begins and the vocal signal is reproduced again, the display 12 is driven.

As described above, according to the present embodiment, since the vocal signal is detected at the beginning of the song and the display 12 is displayed, it is possible to eliminate the delay in the beginning of the song by the user, and also to prevent the user from starting the song at the beginning of the song. But display body 12
By displaying this, it is possible to eliminate the delay in the user's start of singing, and it is also possible to recognize whether or not the user actually started singing late, and also to prevent the user from singing at a tempo that does not match the vocal signal. Even if the user is singing when there is no music, it can be recognized.

In this embodiment, the numeric display of the display body 12 displays "1" or "0", but any combination of other numbers or any combination of the seven numeric display segments and the decimal point segment may be used. You can also turn it on.

Further, in this embodiment, a numeric display for other uses is shared, but a dedicated display body may be used, such as by arranging a plurality of light emitting diodes. FIG. 5 shows various examples of driving the display body.

FIGS. 5a, b, and c show three 7-segment numeric display elements arranged in a row, and the segments are illuminated to indicate the presence or absence of a vocal signal or a microphone signal.

Figure 5a shows segments 504, 505, 506
If there is a vocal signal, 504 → 505 → 506
→504... and so on, and if there is a microphone signal when there is a vocal signal, the segments 501, 502, 503 are displayed as 501 → 50.
2→503→501, etc. are displayed by lighting.

Figure 5b shows segments 510, 511, 512.
If there is a vocal signal, 510 → 511 → 512
→510... and so on, and if there is a microphone signal when there is a vocal signal, the segments 510, 511, 512 are displayed as 510 → 51.
The light is displayed in the order of 1→512→510...

Figure 5c shows segments 516, 517, 518
If there is a vocal signal, 516 → 517 → 518
→516... and so on, and if there is a microphone signal when there is a vocal signal, the segments 513, 514, 515 are displayed as 513 → 51.
4→515→513, etc. are displayed by lighting.

FIG. 5d shows a display device in which a plurality of display elements such as light emitting diodes are lined up for display purposes or for displaying other functions.Display elements 529 to 538
If there is a vocal signal, 529→530→…→5
37 → 538 → 529, etc., and if there is a microphone signal when there is a vocal signal, the display elements 519 to 528 will be displayed as 519 → 5.
The light is displayed in the following order: 20→...→527→528→519... In the above example, the display was moved from left to right, but this movement direction may be any direction such as right to left, top to bottom, bottom to top, etc. In addition, in this embodiment, only one digit is always lit, such as the third digit of the number display element is lit, then the second digit is lit, but it is also possible to light up multiple digits or It may be arranged so that the light does not go out.

Effects of the Invention The present invention can visually display the beginning of a song to the user by driving a display at the position where a vocal signal is played using an audio multiplex recording medium. Since it is a device, it is possible to eliminate delays at the beginning of the song and lag in singing with the accompaniment music in the middle of the song, allowing the user to comfortably enjoy the performance device, and improving the user's sense of rhythm and how to match the tempo. It is possible to improve the singing ability of a person.

[Brief explanation of drawings]

FIG. 1 is a plan view of an audio multiplexing recording medium used in the present invention, FIG. 2 is a block diagram of a main part of an embodiment of the present invention, and FIG. 3 is a circuit diagram showing the specific configuration of this embodiment. FIG. 4 is a flowchart showing the control procedure of the microcomputer, and FIGS. 5a to 5d are explanatory diagrams showing various examples of driving the display body. DESCRIPTION OF SYMBOLS 1... Audio multiplexing recording medium, 2... First track, 3... Second track, 4... First reproducing means, 5... Second reproducing means, 6... First amplification. Means, 9... First signal presence/absence determination means, 10...
Second signal presence/absence determining means, 11...display body drive setting means, 12...display body.

Claims (1)

[Claims] 1 A first reproducing means for reproducing a signal on a first track of an audio multiplex recording medium in which a vocal signal is recorded on a first track and a music signal is recorded on a second track; a second reproducing means for reproducing the signal of the second track; a first amplifying means for amplifying the microphone signal; and an output of each of the first reproducing means, the second reproducing means and the first amplifying means. a second amplifying means for mixing and amplifying the signal to drive a speaker; a first signal presence/absence determining means for determining whether there is an output from the first reproducing means; and a second signal presence/absence determining means for determining whether there is an output from the first amplifying means. a display body drive setting that lights up the display body to perform a first display and a second display, respectively, by the output of the signal presence/absence determination means, the output of the first signal presence/absence determination means, and the output of the second signal presence/absence determination means; 1. A performance device comprising: a display drive setting means for performing both the first display and the second display.