JPH03211597A - 'karaoke' (orchestration without lyrics) device - Google Patents

Abstract

PURPOSE:To realize the chorus of the singing voices of one person and the singing voices of the interval different from the interval thereof simply by inputting the singing voices of one person by providing an adding means which is inputted respectively with the signals obtd. by passing the sound signals of the singing voices through a key shift means and a delay means and the sound signals of accompaniment tones and adds and outputs these signals. CONSTITUTION:The input signal 1 from a microphone is inputted through a switch 3 into the key shift device 4 which is constant in speed and executes the raising and lowering of the interval. The signal changed in the interval is inputted to the delay device 5 which generates a specified quantity of a time delay. Consequently, the output signal of the delay device 5 is the signal which has the specified quantity of the time delay and is changed in the interval. This signal is inputted together with the input signal 1 of the microphone and an accompaniment input signal 2 to an adder 6. The output signal obtd. by the addition is inputted to a speaker driving device 7 to drive a speaker 8. The chorus of the singing voices of one person and the singing voices of the interval different from the interval thereof is executed in this way simply by inputting the singing voices of the one person.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a karaoke device that can realize a chorus of a singing voice and a singing voice with a different pitch by simply inputting the singing voice of a person.

[Prior Art] Many conventional karaoke devices apply an echo to the singing voice and add it to the accompaniment sound.

Furthermore, some karaoke machines aiming at high added value have a function that allows the key of the accompaniment sound to be raised or lowered.

That is, when singing along with accompaniment sounds, the range of the singing voice of five people varies greatly depending on the individual, so depending on the song, it may be impossible to sing the song without using a high or low voice. For this reason, the key of the accompaniment sound is raised or lowered to match the vocal range of -person and -person.

[Problem to be solved by the invention] As mentioned above, as a conventional karaoke device.

There are some that have the function of raising and lowering the key of the accompaniment sound, and can produce an accompaniment sound that matches the vocal range of -person and -person, and others that can produce a singing voice that differs in quality from the singing voice of -person. Ta. However, there has not been a karaoke device that allows people to enjoy the harmony of their singing voice with voices of different pitches even when they sing together.

SUMMARY OF THE INVENTION In view of the above-mentioned circumstances, an object of the present invention is to provide a karaoke device that can realize a chorus of a singing voice of a different pitch by simply inputting the singing voice of a person.

[Means for Solving the Problems] In order to achieve the above object, the present invention first inputs an audio signal of a singing voice into a key shift device that can raise and lower the pitch, and uses a zero-order key shift device that changes the pitch to a predetermined shift amount. , the audio signal whose pitch has changed.

The signal is input to a delay device, and a time delay is generated for the input audio signal. This is because if the key-shifted singing voice is added at the same time as the singer's singing voice, it will just be heard as one synthesized sound.

Next, the previous singing voice audio signal, the time-delayed key-shifted singing voice audio signal, and the accompaniment sound audio signal are added and amplified to generate sound from the speaker. Then from the speaker.

The singing voice of the person singing, the accompaniment sound, and the time-delayed singing voice with a changed key can be heard separately, and this means the realization of a chorus with different pitches.
Able to achieve purpose.

Regarding the above-mentioned key shift device, see 1, for example, Sharp Technical Report No. 32, 1985, pages 67 to 7.
It is described in detail on page 3.

[Function] The audio signal output from the microphone is input to a key shift device that changes the pitch. here.

Compared to a singing voice input to a microphone, the pitch of the singing voice can be changed without changing the speed.Next, the voice signal is input to a delay device that delays the input signal for a certain period of time. Here, a time delay is created in the singing voice, creating a time difference between it and the singing voice input into the microphone. Next, the audio signal that has passed through the delay device is mixed with the original audio signal from the microphone and the accompaniment sound. Add with audio signal. As a result, from the audio signal obtained by adding, the singing voice input from the microphone, the singing voice with a time delay with a changed pitch, and the accompaniment sound,
Obtainable.

[Example] Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

An input signal 1 from a microphone (not shown) enters a switch 3 that determines whether or not to perform chorus operation. Only when a chorus operation is desired, the control signal 9 causes the switch 3 to become conductive. The signal passed through the switch 3 has a constant speed and is input to a key shift device 4 which raises and lowers the pitch.

A signal whose pitch has changed is a delay family that causes a certain amount of time delay! ! 5 is input. As a result, the Delay tribe! 5
The output signal has a certain amount of time delay compared to the original microphone input signal 1. The signal has a different pitch.

Next, this signal is input to the adder 6 together with the microphone input signal 1 and the accompaniment input signal 2.

The output signal obtained by the addition is input to the speaker driving device 17 to drive the speaker 8.

As a result, the sounds heard from the speaker 8 are the input voice (singing voice) from the microphone, the voice with a changed pitch and time delay, and the accompaniment sound.When one or more choruses are activated, , it is possible to create a chorus between the input voice and voices with different pitches.

[Effects of the Invention] As explained above, according to the karaoke apparatus according to the present invention, by simply inputting the singing voice of the person -, it is possible to realize a chorus of the singing voice and a singing voice with a different pitch.

[Brief explanation of drawings]

The figure is a block diagram showing an embodiment of the present invention. Explanation of symbols 1...Microphone input signal, 2...Accompaniment input signal, 3
...Switch, 4...Key shift device, 5...Delay device, 6...Adder, 7...Speaker drive device, 8...Speaker, 9...Control signal.

Claims (1)

[Claims] 1. A key shift means for varying the pitch of an input audio signal and outputting it; a delay means for delaying and outputting an input audio signal for a certain period of time; and an audio signal of a singing voice; A karaoke apparatus comprising: a signal obtained through the delay means and an audio signal of the accompaniment sound; and an adding means for respectively inputting, adding and outputting the signal.