JPS6120992A - Karaoke practicing apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a karaoke practice apparatus having a score display function.

Conventional Structure and Problems Traditionally, karaoke practice devices have used soft tapes (hereinafter referred to as audio multiplex tapes) in which the performance and singer's vocal signals are recorded on separate tracks. It is known that a microcomputer or the like is used to compare the singer's vocal signal recorded on tape with the practitioner's vocal signal input through a microphone, and the results of this comparison are displayed as a score. It is very useful for karaoke practice and games where you compete with others in singing. However, such conventional devices require special tapes such as audio multiplex tapes made according to the number of songs. These days, many audio multiplex tapes are available on the market, and the cost is low, but if you still want to enjoy various types of songs using a scoring device, there are many audio multiplex tapes available. Currently, this is necessary and causes high costs.

FIG. 1 shows a conventional karaoke practice device with a microphone mixing function. Conventionally, when a practitioner sings using one or both of the first and second microphones (1) and (2) while playing an audio multiplexed tape (11), the first,
The vocal signal collected by the second microphone (1) (2) is transferred from the input terminal (3) (4) to the audio amplifier (5).
) (6), and gradually adjust the level adjustment volume (7).
) (8), and then the speaker (
21). Also, audio multiplex tape (11)
The performance signal recorded on one channel of is reproduced by a reproduction head (12) and supplied to a power amplifier (20) via amplifiers (14) and (17). The singer's vocal signal recorded on the other channel of the audio multiplex tape (11) is reproduced by a reproduction head (13) and supplied to a power amplifier (20) via amplifiers (15) and (12). The output signals of the amplifiers (14) and (15) are properly balanced with the balance volume (16), mixed, and input to the amplifier (17). After adjusting the level appropriately at (18), it is mixed with the vocal signal from the aforementioned microphone, and the mixed level is adjusted at the volume (19) and then supplied to the power amplifier (20). Audio amplifier (5) (
A part of the output signal (practitioner's vocal signal) of step 6) is sent to the first waveform conversion circuit (A) in the score display device (10).
) to the comparison calculation circuit (B) of the score display device (10)
A part of the output signal [singer's vocal signal] of the amplifier (15) is sent to the comparison calculation circuit (B) via the second waveform conversion circuit (C) in the score display device (10). Supplied. The comparison circuit (B) compares these two signals, and the difference is displayed on the score display circuit (D).

OBJECTS OF THE INVENTION It is an object of the present invention to provide a karaoke practice device that can obtain a score display without using a previously recorded audio multiplex tape or the like.

Configuration of the Invention The karaoke practice device of the present invention is configured to compare the practitioner vocal signal input from the first microphone with the singer vocal signal reproduced from the recording medium, and display the evaluation result of the practitioner vocal signal as a score. At the same time, a switching means is provided for selecting the leader vocal signal input from the second microphone and the singer vocal signal reproduced from the recording medium on the reference vocal signal input line serving as a reference for the comparison, and audio multiplex recording is performed. The present invention is characterized in that even without a medium, the score display of the practitioner's vocal signal can be obtained by the instructor inputting the vocal signal from the second microphone.

Description of examples Hereinafter, one embodiment of the present invention will be described based on FIG. 2.

Components that have the same functions as those in FIG. 1 are given the same reference numerals and their explanations will be omitted.

FIG. 2 shows a karaoke practice device according to the present invention, and differs from FIG. 1 in the following points. That is, in FIG. 2, the first and second waveform conversion circuits (A) (
Switches (22) and (23) are connected to the input lines of C), respectively.
) have been established. This switch (22) and (23)
Both have contacts I and II and are configured to switch in conjunction with each other. Now, for example, if these two switches (22) and (23) are switched to the contact ■ side, the karaoke practice device will switch to the first Perform actions similar to those in the diagram. Also, when the switches (22) and (23) are switched to the contact ■ side, the sound input from the first and second microphones (1) and (2) will be heard by the second microphone (2).
The switch (22) prohibits input of the audio from the microphone (2) to the first waveform conversion circuit (A).
The audio is input to the second waveform conversion circuit (C) via the switch (23). Note that the first waveform conversion circuit (
The audio from the first microphone (1) is input to A), and the singer vocal signal reproduced via the playback head (13) is sent to the second waveform conversion circuit (C) by the switch (23). input is prohibited.

Because of this configuration, if the audio multiplex tape of the required song cannot be prepared, the switch (22) (2
3) to the contact I side, and input the practitioner's vocal signal from the first microphone (1), and input the instructor's vocal signal from a good singer who is different from the practitioner from the second microphone. , the first waveform conversion circuit (
In A), the practitioner vocal signal is input to the second waveform conversion circuit (
In C), the instructor vocal signal is recorded, and the score display device (10) evaluates the practitioner vocal signal based on the instructor vocal signal, and displays the evaluation result as a score. If this score is low, you can get a high score by singing in tune with the instructor's vocal signal.

As described in the detailed description of the invention, the karaoke practice device of the present invention compares the practitioner's vocal signal input from the second microphone with the singer's vocal signal reproduced from the recording medium to determine the evaluation result of the practitioner's vocal signal. The system is configured to display scores, and the leader vocal signal manually inputted from the second microphone and the singer vocal signal generated from the recording medium are selected on the J & quasi-vocal signal input line, which serves as the reference for the comparison. Since a switching means is provided, by switching the switching means, the practitioner can use the first microphone and the instructor can use the second microphone to record 1' created for karaoke, even without a special recording medium such as a Kotaichi Arp. You can get a score display by singing into the microphone.

In this way, a practitioner can practice singing by singing with a good singer without using a multiplexed audio tape, which is extremely economical. Furthermore, by returning the switching means to the side of the singer's vocal signal reproduced from the recording medium, the practitioner can of course enjoy displaying the score alone, further increasing the utility value of the karaoke scoring device and making karaoke fun. can be made larger and larger.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a conventional karaoke practice device, and FIG. 2 is a block diagram of an embodiment of the present invention. (1) (2)...first and second microphones, (5
) (6)...Audio amplifier, (10)...Score display display device, (11)...Audio multiplex tape, (12) (
13)...Playback head, (14)(15) (17
)...Amplifier, (20)...Power amplifier, (21)
...Speaker, (22) (23)...Switch [
switching means], I. ■・・・Contact

Claims (1)

[Claims] 1. Compare the practitioner vocal signal input from the first microphone with the singer vocal signal reproduced from the recording medium, and display the evaluation result of the practitioner vocal signal as a score, and serve as a reference for the comparison. A karaoke practice device including a switching means for selecting an instructor vocal signal inputted from a second microphone and the singer vocal signal reproduced from a recording medium on a reference vocal signal input line.