DESIGNING METHOD FOR SOUND CORRECTION FILTER, CREATION METHOD FOR THE SOUND CORRECTION FILTER, FILTER CHARACTERISTIC DETERMINING DEVICE FOR THE SOUND CORRECTION FILTER, AND SOUND SIGNAL OUTPUT DEVICE

摘要

PROBLEM TO BE SOLVED: To output a signal making it possible to generate a musical sound of good quality according to a signal obtained according to the vibration of a string even when a vibration suppressing means such as a mute member is mounted.

SOLUTION: The filter characteristic of a filter correcting a signal detected by a pickup of a violin mounted with the mute member is derived as follows. Namely, signals detected by the pickup in mute playing and normal playing are obtained and the filter characteristic is derived according to the difference between amplitude characteristics of the both. The signal detected in the mute playing is inputted to a FIR filter having the filter characteristic which is thus obtained and then a signal having nearly the same characteristic with the signal detected in the normal playing can be obtained.

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