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Radio remote control automatic playing system of piano

A technology for automatic playing and piano, which is applied to automatic musical instruments and instruments, etc. It can solve the problems of affecting the best relative position of the light barrier and the photoelectric sensor, inaccurate recording, and inability to record, so as to achieve strong self-adaptive ability of recording and simple maintenance Convenience, low distortion effect

Inactive Publication Date: 2005-06-08
张文革
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, during the use of the piano, it is impossible not to adjust the tuning
This necessary mechanical adjustment will affect the best relative position of the light baffle and the photoelectric sensor, making the recording inaccurate, or even unable to record (the light baffle cannot block the beam)

Method used

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  • Radio remote control automatic playing system of piano
  • Radio remote control automatic playing system of piano
  • Radio remote control automatic playing system of piano

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings: figure 1 , figure 2 As shown, in the main body of the piano, a permanent magnet is stuck on the bottom surface of each key, and there is a circuit board under the key, and Hall sensors are respectively installed on the circuit board facing the permanent magnet. Depending on the relative distance, the permanent magnet will generate different magnetic fields at the Hall element, and the Hall element will output a voltage signal corresponding to the strength of the magnetic field. The analog signal is converted from analog to digital, and the digital signal is input to the single-chip computer. The single-chip computer collects this voltage signal, and through certain analysis and calculation, the relative distance between the permanent magnet and the Hall element can be known at this time. Since the permanent magnet is glued to the key, the movement state of th...

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Abstract

The invention relates to a piano playing process recording device which can automatically test and emend a transducer. It can automatically record and play piano playing process, test the moment and dynamics of the piano key action by the transducer, and record to form sonic signal, then transform it to voltage signal to store; and wireless tele-operator is used to select and replay the catalogue stored in the piano. The advantage of the invention is that the adaptive ability of the piano sounding recording is better, the distortion is smaller, the sound recording effect is better, and the maintenance is simpler and more convenient.

Description

technical field [0001] The invention relates to a piano playing process recording device capable of automatically detecting and correcting sensors, which is especially suitable for a piano wireless remote control automatic playing system. Background technique [0002] The automatic piano performance system is a set of devices that can automatically record and automatically play the piano performance process. This device detects the moment and dynamics of the action of the piano by a sensor and records to form a music file, that is, a recording. When playing, the single-chip computer controls the electromagnet to strike the piano keys according to the music content, and finally strikes the strings to produce sound through the mechanical transmission parts of the piano. [0003] At present, known automatic piano performance system recording device adopts photoelectric sensor. When the piano moves, it drives a metal light-blocking sheet that is staggered left and right to for...

Claims

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Application Information

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IPC IPC(8): G10F1/02G10F3/00
Inventor 陈培华吴应斌黄宋进汪竹平钟铭成谭发康
Owner 张文革
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