Method and system for detecting piano keys

Abstract

The invention provides a piano key detection method and system. The piano key detection method includes the following steps: using photoelectric sensors which are correspondingly disposed below each piano key to detect the displacement of the piano key and on the basis of the detected displacement of the piano key, generating a button sample signal corresponding to the displacement; processing the button sample signal to acquire a displacement region of the piano key which corresponds to the button sample signal and the displacement time of the piano key, wherein the distance from the position from which the piano key moves down to the bottom limit of the piano key is divided into 5 displacement regions. The photoelectric sensor is an infrared photoelectric tube. According to the invention, the method can record moving track of the piano keys in a more accurate and real manner without impacting hand feel generated when a player presses the piano keys, is very significant to recovery of the moving track of the piano keys, and provides important data support to performing methods which are defined as different.

Description

technical field [0001] The invention relates to the technical field of musical instruments, in particular to the technical field of pianos, in particular to a piano key detection method and system. Background technique [0002] The piano is a keyboard instrument derived from Western classical instruments. It consists of keys and a metal string soundboard. The player presses the keys on the keyboard, moves the small mallet inside the piano, and then strikes the steel wire strings to produce sound. The piano is known as the king of musical instruments because of its beautiful sound. With the improvement of people's living standards, more and more people are learning to play the piano. In addition to talent, piano performance also requires face-to-face instruction from a piano teacher. Therefore, it is difficult for students to practice independently without the guidance of a piano teacher. . [0003] In the training of the piano, when beginners learn fingering, even if they ...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a method and system for detecting piano keys, which is used to solve the problem of low accuracy of the movement track of the detection keys in the prior art

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