Method of configurating acoustic correction filter for...

Details Method of configurating acoustic correction filter for... Method of configurating acoustic correction filter for...

2005-04-19

2005-04-19

Fletcher, Marlon T. (Department: 2837)

Music

Instruments

Electrical musical tone generation

C084S603000, C084S661000, C084S728000, C084S735000, C084SDIG009

Reexamination Certificate

active

06881892

ABSTRACT:
A method is provided for designing an acoustic correction filter applicable to a stringed instrument, which is composed of a string member operable to undergo a vibration, a support member for supporting the string member, a body member responsive to the vibration transmitted through the support member for generating a natural sound and a mute attachment for muting the natural sound. The acoustic correction filter is operable when the natural sound is muted by the mute attachment for filtering a signal derived from the vibration so as to create an artificial sound instead of the muted natural sound. The method is carried out by the steps of acquiring a first sample signal from the vibration under a mute state, acquiring a second sample signal from the vibration under a free state, extracting a difference between the acquired first sample signal and the acquired second sample signal, and determining a correction characteristic of the acoustic correction filter based on the extracted difference such that the acoustic correction filter can filter the signal in accordance with the determined correction characteristic so as to create the artificial sound comparable to the natural sound.

REFERENCES:
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patent: 5521329 (1996-05-01), Yamauchi et al.
patent: 5587548 (1996-12-01), Smith, III
patent: 6437226 (2002-08-01), Oudshoorn et al.
patent: 6479740 (2002-11-01), Schwartz et al.
patent: 6627806 (2003-09-01), Carpenter
patent: 6737572 (2004-05-01), Jameson et al.
patent: 3027699 (1996-05-01), None

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