Resonance sound control device

Abstract

The present invention provides a resonance sound control device which can achieve middle resonance state in an electronic piano. The electronic piano includes plural keys and a sound source device (6)that emits a sound by pressing of the key, an intermediary resonance state of a resonance sound can be reproduced by including a resonance circuit (11) that inputs a sound source from the sound source device corresponding to the each key and outputs a resonance sound, a position detection sensor (SW) in which plural switches close sequentially according to a key pressing state of the key, and a resonance sound control device (10) that controls the resonance sound by an open/close state of plural switches by the position detection sensor (SW).

Description

technical field [0001] The present invention relates to an effect imparting device in an electric piano, and particularly relates to a resonant sound capable of reproducing string resonance (string resonance) that occurs in an acoustic piano in a state where the dampers are separated by pressing keys. control device. Background technique [0002] In the case of an acoustic piano, when a key of the keyboard is pressed, the damper felt is separated from the string as the damper rod is rotated, and the action acts in response to the key to strike the hammer against the string, by The vibration of this string is transmitted to the soundboard to produce a musical tone. Normally (when not pressed), the damping felt is in contact with the string to control the vibration. [0003] In the case of an electric piano, in addition to the actual sound of the main piano, various additional sounds and additional effects are added to enhance the realism of the sound and bring it close to t...

AI Technical Summary

Problems solved by technology

[0008] However, in the processing of string resonance performed in conventional electric pianos, the on-position of the key that produces the musical sound (key completion state: node-on state) is the object of string resonance, so it cannot be processed like an actual acoustic piano. Reproduces the state of the resonance of the key that is pressed halfway, and the degree of resonance that changes according to the depth of the key when pressing the key

[0009] In addition, Patent Document 1 describes that, when imparting an effect realized by a reverberation sound, the characteristics of controlling the effect are controlled by using performance information such as aftertouch and key depth, which can be output to each key, but does not provide and string resonance processing

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