JP2001290480A - Electronic musical instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic musical instrument by which natural piano playing is conducted while changing the weight of a keyboard in accordance with a sustain pedal in a pseudo manner. SOLUTION: Velocity data generated from a keyboard 1 and a speed detecting means 2 are added with addition data corresponding to the amount of stepping in of a sustain pedal 3. Thus, the velocity data are varied in accordance with the pedal 3 and the weight of the keyboard is changed in a pseudo manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument whose keyboard weight changes in response to depression of a sustain pedal.

[0002]

2. Description of the Related Art Some conventional electronic musical instruments change the reverberation and sound of a musical tone in response to depression of a sustain pedal. (For example, Japanese Patent Publication No. 63-193185
Reference).

[0003]

In an acoustic piano, when the sustain pedal is depressed, the damper mechanism is released, so that the keyboard becomes lighter. As a result, a strong sound comes out even with a weaker touch.

In a conventional electronic musical instrument, the reverberation and sound can be changed according to the sustain pedal, but the weight of the keyboard cannot be changed. For this reason, when the pianist plays the electronic musical instrument in the sense of an acoustic piano, there is a problem that when the sustain pedal is depressed, the sound does not sound as expected.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide an electronic musical instrument capable of performing a natural piano performance by changing the weight of a keyboard in a pseudo manner according to a sustain pedal. It is in.

[0006]

In order to solve the above-mentioned problems, an electronic musical instrument according to the present invention comprises: a keyboard; speed detecting means for detecting a key pressing speed of each tendon of the keyboard and outputting the data as velocity data; A pedal, depression detection means for detecting a depression state of the sustain pedal and outputting the same as sustain pedal data, velocity addition data generating means for outputting velocity addition data in accordance with the sustain pedal data, and a combination of the velocity data and the velocity addition Velocity adding means for adding data.

With this configuration, the velocity data can be changed according to the depression of the sustain pedal, so that the weight of the keyboard can be artificially changed according to the sustain pedal.

[0008]

Embodiments of the present invention will be described below with reference to FIG.

(Embodiment 1) FIG. 1 is a schematic diagram of an electronic musical instrument according to the present invention. As shown in FIG. 1, the electronic musical instrument according to the present invention includes a keyboard 1, a speed detection unit 2, a sustain pedal 3, a depression detection unit 4, a velocity addition data generation unit 5, and a velocity addition unit 6. , Sound source 7.

When the player presses one key of the keyboard 1, note data conforming to the MIDI standard is generated and sent to the tone generator 7. At the same time, the speed detecting means 2 detects the key pressing speed and generates velocity data. The key press detection means 2 includes two switches installed at a shallow position and a deep position of each key, and counts a time difference between these two points. The output velocity data conforms to the MIDI standard and is a numerical value from 1 to 127. The velocity data is sent to velocity adding means 6.

On the other hand, the depression detecting means 4 detects the state of the sustain pedal 3 and outputs it as sustain pedal data. The depression detecting means 4 includes an AD converter for detecting the amount of depression of the sustain pedal, and outputs 0 when the depression is not performed and 127 when depressed.
This value corresponds to the MIDI standard. The sustain pedal data is sent to the sound source 7 and also sent to the velocity added data generating means 5. The velocity addition data generating means 5 receives the sustain pedal data,
Output velocity addition data. For example, when the sustain pedal data is 0 (when the pedal is not depressed), the velocity added data is 0, and when the sustain pedal data is 1 to 127 (when the pedal is depressed even a little), it is 8. The velocity addition data is sent to velocity addition means 6.

The velocity adding means 6 adds the velocity data and the velocity addition data, and sends the result to the sound source 7. The sound source 7 receives the value of the velocity data itself when the sustain pedal is not depressed, and receives the value of the velocity data +8 when the sustain pedal is depressed. Sound source 7
Is a sound source conforming to the MIDI standard, and determines a volume and tone based on note data from the keyboard 1, sustain pedal data from the depression detecting means 4, and velocity data from the velocity adding means, and generates a musical tone. Let it.

As described above, in the present invention, the value of the velocity sent to the sound source can be changed by depressing the sustain pedal, so that the weight of the keyboard is changed in a pseudo manner in accordance with the pedal, which is very close to an acoustic piano. An electronic musical instrument having a performance feeling can be provided.

In the above description, the velocity added data generating means 5 sets the velocity added data to 0 when the sustain pedal data is 0 and 8 when the sustain pedal data is 1 to 127. May be changed stepwise, such as 0 for 11 and 1 for 11-20.

In the above description, the depression detecting means 4 can detect the depression amount stepwise.
A switch type of ON and OFF may be used.

[0016]

According to the present invention, there is provided an electronic musical instrument in which the weight of a keyboard is artificially changed by depressing a sustain pedal.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of an electronic musical instrument according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Keyboard 2 ... Speed detection means 3 ... Sustain pedal 4 ... Depressed detection means 5 ... Velocity addition data generation means 6 ... Velocity addition means 7 ... Sound source

Claims (1)

[Claims] 1. A keyboard, speed detecting means for detecting a key pressing speed of each tendon of the keyboard and outputting as velocity data, a sustain pedal, and a depression for detecting a depression state of the sustain pedal and outputting as sustain pedal data. An electronic musical instrument comprising: a detection unit; a velocity addition data generation unit that outputs velocity addition data according to the sustain pedal data; and a velocity addition unit that adds the velocity data and the velocity addition data.