Piano rhythm calibration apparatus based on chord vibration signal and application method

Abstract

The invention provides a piano rhythm calibration apparatus based on a chord vibration signal and an application method, which can increase the toning efficiency of a piano and improve the quality ofthe piano. The piano rhythm calibration apparatus comprises two calibration supports and a signal acquisition apparatus, wherein a ball screw is arranged between the two calibration supports, the ballscrew is provided with a nut pair I and a nut pair II, a movable supporting plate I is arranged outside the nut pair I, a movable supporting plate II is arranged outside the nut pair II, the movablesupporting plate I is provided with a lower pressing plate, the movable supporting plate II is provided with a traction plate, the lower pressing plate is connected with the traction plate by virtue of a traction wire, and the lower part of the lower pressing plate is provided with a lower pressing block. The piano rhythm calibration apparatus is provided with the lower pressing block, piano keysare pressed by the lower pressing block to vibrate chord, and the lower pressing block is returned after pressing the piano keys, so that the consistence of the pressing force at every time can be ensured.

Description

technical field [0001] The invention relates to the technical field of piano tuning, in particular to a piano temperament calibration device based on string vibration signals and a method for using it. Background technique [0002] The sound quality of the piano directly affects the performance of the piano. In the process of long-term use, the piano may suffer from wear and tear of parts and mechanical failures. Regular tuning is a necessary means to maintain the piano's pitch and prolong the service life of the piano. [0003] The timbre, pitch and loudness of the piano are the three basic characteristics of the musical tone. The spectrum determines the timbre of the musical tone, the frequency determines the tone of the musical tone, and the loudness marks the way the piano is played, and to a considerable extent affects the listener's perception of the musical tone. However, usually a new piano that is not in tune will become incomplete and inaccurate within two years. ...

AI Technical Summary

Problems solved by technology

[0003]The timbre, pitch and loudness of the piano are the three basic characteristics of the musical tone, in which the spectrum determines the timbre of the musical tone, the frequency determines the pitch of the musical tone, and the loudness marks the piano’s The way of playing, and to a considerable extent, affects the listener's judgment on the timbre of the music, but usually a new piano that is not in tune will become incomplete and inaccurate within two years

[0004] However, the piano tuner requires a very professional piano tuner, and the cost of the piano tune is also quite expensive, causing a great burden to ordinary families with average economic conditions

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