JPH087592B2 - Playback device for singing - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reproducing apparatus for singing a karaoke set in which a player reproduces a disc or a magnetic tape and sings while listening to an accompaniment sound.

[0002]

2. Description of the Related Art Conventionally, there has been a technique in which a disc player or a cassette tape player is provided with a karaoke function, and a singing voice input to a microphone and an accompaniment sound are mixed and reproduced.

[0003]

In the above-mentioned prior art, the means for manually adjusting the key (sound keynote) of the accompaniment sound output of the player was provided. However, the accompaniment sound output key is adjusted in accordance with the key of the singer. Cannot be easily set, and the pitch of the accompaniment sound cannot be easily matched with the voice of the singer.

[0004]

Therefore, the present invention compares the means for extracting the singing voice output reproduced by the player, the key of the singing voice input to the microphone, and the key of the singing voice output from the player. Means for outputting the key difference and a means for automatically correcting the accompaniment sound output key from the player based on the key difference, and an automatic correction time.
When a predetermined time has elapsed since the player started playing,
The automatic correction is performed only during the period, and after the automatic correction time, the specified
It is fixed to the key of the key and played back, and the key of the accompaniment sound played by the player is automatically corrected based on the key difference calculated by comparing the extracted singing voice sound and the singing voice from the microphone. Therefore, it is possible to easily obtain an accompaniment sound whose pitch is substantially the same as the voice of the singer, and enjoy singing with the accompaniment sound of the key suitable for the singer.

[0005]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a block circuit diagram for karaoke, which is equipped with an audio player (1) for playing a video disc, a compact disc, or a cassette tape.
Through an accompaniment sound output circuit (2) for outputting an accompaniment sound (karaoke melody part) generated by playing a musical instrument, and a singing sound output circuit (3) for outputting a singing voice sound (vocal part) by a singer, an audio player (1) The reproduced signals of the accompaniment sound and the singing voice sound are input to the digital signal conversion circuit (4).

The accompaniment sound and singing voice sound output converted into digital signals by the digital signal converting circuit (4) are input to the key control circuit (5), and the accompaniment sound and singing voice sound from the key control circuit (5) are input. The output is input to the analog signal demodulation circuit (6), and the accompaniment sound and singing voice output which are returned to the analog signal by the demodulation circuit (6) are input to the voice output circuit (7). At the same time, or only the accompaniment sound is reproduced and output by the speaker (8).

A microphone (9) is connected to the voice output circuit (7), and a singing voice input to the microphone (9) is reproduced and output from a speaker (8) via the voice output circuit (7). It is configured to perform karaoke.

Furthermore, a key data extraction circuit (10) which is means for extracting the singing voice sound output reproduced by the player (1) is provided, and the key data extraction circuit (10) is used to pass the bandpass filter (11) and the digital signal conversion circuit (12). The singing voice sound of the singing voice output circuit (3) is input to the extraction circuit (10) to detect the accompaniment sound and the key of the singing voice (sound keynote) reproduced by the player (1), and a digital signal conversion circuit. The singing voice output of the microphone (9) is taken out to the key data extraction circuit (14) via (13), and the extraction circuit (14) detects the key of the singing voice input to the microphone (9). are doing.

A key data comparison circuit (means for comparing the keys of the singing voice input to the microphone (9) with the keys of the singing voice output from the player (1) and outputting the difference between the keys. 15) equipped with a microphone (9)
The comparison circuit (15) compares the key of the singing voice input to the key of the player (1) with the key of the singing voice output from the player (1) to calculate the difference between the keys, and the accompaniment sound from the player (1). The key control circuit (5), which is a means for automatically correcting the output key, inputs the key difference calculated by the comparison circuit (15), and outputs accompaniment sound and singing sound from the player (1). Key of the player (1) is automatically corrected by the key control circuit (5) based on the difference between the keys input from the comparison circuit (15), and is used as the key of the singing voice input to the microphone (9). The accompaniment sound output keys are made to substantially coincide with each other, and the accompaniment sound of the key matching the key of the singing voice is reproduced from the speaker (8).

This embodiment is configured as described above, and by reproducing the video disk (LD) or the like by the player (1) and singing by using the microphone (9), as shown in the flowchart of FIG. , The accompaniment sound and singing voice output from the player (1) are input to the key control circuit (5), and the singing voice output key of the player (1) and the singing voice key input to the microphone (9) The difference is input from the comparison circuit (15) to the key control circuit (5). When the singing voice key input to the microphone (9) is lower than the singing voice output key of the player (1), the player ( When the key of the accompaniment sound output of 1) is lowered and the key of the singing voice input to the microphone (9) is higher than the key of the singing sound output of the player (1), the player (1 Raise the key of the accompaniment sound output of, the accompaniment sound you change the key in accordance with the people of key singing is intended to be reproduced from the speaker (8).

Further, a timer (not shown) for limiting the automatic correction time of the key control circuit (5) based on the output of the key data comparison circuit (15) is provided so that only the beginning portion of the music reproduced by the player (1) is described above. The key control operation is performed, and after the automatic correction time, the music can be played with the pitch fixed by the predetermined key after correction, and the time limit by the timer is released, and the key can be played from the beginning to the end of the song. It is also possible to continuously perform automatic correction of the key control circuit (5) based on the output of the data comparison circuit (15).

[0012]

As is apparent from the above embodiments, the present invention provides means for extracting a singing voice output reproduced by the player (1), keys for singing voice input to the microphone (9), and the player (1). ), A means for comparing the singing voice output key from the player) to output the key difference, a means for automatically correcting the accompaniment sound output key from the player (1) based on the key difference, and an automatic correction Equipped with a means to limit the time
However, automatic correction is performed for a predetermined time after the player starts playing.
After the automatic correction time, fix it on the specified key after correction and
The singing person automatically revises the key of the accompaniment sound reproduced by the player (1) based on the key difference calculated by comparing the extracted reproduced singing voice sound with the singing voice from the microphone (9). It is possible to easily obtain an accompaniment sound whose pitch is substantially the same as that of the voice, and enjoy singing with the accompaniment sound of the key suitable for the singer.

[Brief description of drawings]

FIG. 1 is a block circuit diagram for karaoke.

FIG. 2 is a flowchart of a key control circuit.

[Explanation of symbols]

 (1) Audio player (9) Microphone

Claims (1)

[Claims] 1. A means for extracting a singing voice output reproduced by a player, and a means for comparing a singing voice key input to a microphone with a singing voice output key from the player and outputting a key difference. , A means for automatically correcting the key of the accompaniment sound output from the player based on the difference between the keys, and a means for limiting the automatic correction time,
At the time of automatic correction
A playback device for singing, characterized in that after a certain period of time, the corrected key is fixed and played back.