JPH01173098A - Electronic musical instrument - Google Patents

Abstract

PURPOSE:To output a musical sound being faithful to a feeling expression by forming a frequency signal corresponding to an input voice and a musical interval of a musical sound and controlling a generated musical sound signal. CONSTITUTION:A voice and a musical sound inputted from a microphone 1 of a frequency signal forming means pass through a noise elimination use filter 2 and converted to a pulse width signal by a comparator 3 and a frequency signal being faithful to a feeling expression is formed and outputted from a musical interval graded exactly from a signal converting circuit 4. By this frequency signal, a sound source 6, etc. are controlled through a sound source control circuit 5 of an output means B, and a musical sound signal being faithful to a feeling expression is generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electronic musical instrument, and particularly to an electronic musical instrument that is most suitable for emotional expression.

[Conventional technology]

Conventional methods for determining the pitch of musical tones output from electronic musical instruments include determining the output frequency using key switches or matrix-type switches built into the fingering positions of keyboard instruments, wind instruments, string instruments, etc.; There is a type that determines the pitch using a keisui sochi and a sensor that detects the presence or absence of string vibration, and determines the output frequency according to the result of the determination.

[Problem that the invention seeks to solve]

However, although these conventional methods can make the output frequency correspond to accurate pitch, they cannot express the subtle pitch deviations that occur when humans sing or play musical instruments. Dissatisfaction is often confused when expressing emotions.

The present invention has been made in consideration of the above circumstances, and an object of the present invention is to provide an electronic musical instrument that is optimal for expressing emotions.

[Means for solving problems]

In order to achieve the above object, the electronic musical instrument according to the present invention has the following features:
The present invention is characterized in that it includes a frequency signal forming means for converting input voice or musical tone into a frequency signal, and an output means for outputting an arbitrary musical tone at a frequency corresponding to the frequency signal.

[Effect]

According to the present invention, a frequency signal corresponding to the pitch is formed from a voice or a musical tone that is an emotional expression itself, and a musical tone is outputted by the output means at a frequency corresponding to the frequency signal. Therefore, it is possible to output musical tones at pitches that are slightly shifted from accurately graded pitches in accordance with the expression of emotion, thereby outputting musical tones that are faithful to the expression of emotion, making it ideal for emotional expression.

〔Example〕

Embodiments of the present invention will be described below based on the drawings.

As shown in FIG. 1, an electronic musical instrument according to an embodiment of the present invention includes a frequency signal forming section A that inputs voice or musical tone and forms a frequency signal corresponding to the pitch thereof, and a frequency signal forming section A that forms a frequency signal corresponding to the pitch of the input voice or musical tone. The frequency signal forming section A includes a microphone 1 that inputs voice or musical tone, a filter circuit 2 that removes noise from the voice input to the microphone 1, and an output section B that outputs the musical tone of a predetermined musical instrument at a frequency.
It is comprised of a comparator 3 that converts the output of the filter circuit 2 into a pulse width signal, and a signal conversion circuit 4 that converts the pulse width signal output from the comparator 3 into a frequency signal. The output section B includes a sound source control circuit 5 that controls the sound source so as to generate a sound having a frequency inputted from the frequency signal forming section A, and a sound source control circuit 5 that controls the sound source so that the frequency of a predetermined musical tone is inputted from the frequency signal forming section A. a sound source circuit 6 that outputs a musical tone signal corresponding to a musical tone of a corresponding frequency; an amplifier circuit 7;
It is composed of a speaker 8. The filter circuit 2 is composed of a band-pass filter such as a low-pass filter that passes the frequency band of human voice.

In the above configuration, the human voice or musical tone picked up by the microphone 1 passes through the filter circuit 2 to remove noise, and is converted into a pulse width signal by the comparator 3.

The pulse width signal of ε is further converted into a frequency signal by the signal conversion circuit 4 and then outputted to the output section B. Output part B
Then, the sound source control circuit 5 inputs the frequency signal and controls the sound source 6.
is controlled, and the sound source 6 outputs a musical tone signal corresponding to a musical tone having a frequency corresponding to the frequency signal. Then, this output is amplified by the amplifier circuit 7, converted into a musical tone by the speaker 8, and outputted. The frequency of this musical sound output is a frequency corresponding to the above frequency signal, and since the above frequency signal corresponds to the frequency of the voice or musical tone input to the microphone 1, the frequency of the voice or musical tone input to the microphone 1 is the frequency that corresponds to the frequency signal. A musical tone having a frequency corresponding to the frequency will be output.

In this way, by making the frequency of the musical tone output from the speaker 8 correspond to the frequency of the voice or musical tone input to the microphone 1, it is possible to change the pitch from an accurately graded pitch to a pitch that is slightly shifted in accordance with the expression of emotion. This makes it possible to obtain an electronic musical instrument that is ideal for emotional expression and can output musical tones that are faithful to emotional expression.

〔Effect of the invention〕

As described above, according to the present invention, the frequency signal forming means inputs a voice or musical tone that is an emotional expression itself and forms a frequency signal corresponding to the pitch thereof, and the output means generates a frequency signal corresponding to the frequency signal. Since musical tones are output, it is possible to output musical tones with pitches that are slightly shifted from accurately graded pitches in accordance with the expression of emotion, and to output musical tones that are faithful to the expression of emotion. This makes it optimal for

[Brief explanation of the drawing]

FIG. 1 is a block circuit diagram of an electronic musical instrument according to an embodiment of the present invention. A... Frequency signal forming means, B... Output means.

Claims (1)

[Claims] (1) An electronic musical instrument characterized by comprising a frequency signal forming means for converting input voice or musical tone into a frequency signal, and an output means for outputting an arbitrary musical tone at a frequency corresponding to the frequency signal.