Coefficient measurement apparatus, effect impartment...

Details Coefficient measurement apparatus, effect impartment... Coefficient measurement apparatus, effect impartment...

G - Physics

10

H

G10H 3/12 (2006.01) G10H 3/18 (2006.01) G10H 3/26 (2006.01)

Patent

CA 2648419

In a coefficient measurement apparatus, a line input terminal receives a pickup signal that is generated based on a string vibration of a musical instrument. A microphone input terminal receives a microphone signal acquired by a microphone that collects sounds of the musical instrument. An adaptive filter estimates a transfer function associated to resonance of the musical instrument and a transfer function of an acoustic space formed from the musical instrument to the microphone, generates an output signal by processing the pickup signal using the estimated transfer function, and updates the transfer function using a difference between the output signal and the microphone signal as a reference signal.

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