Method and apparatus for changing the timbre and/or pitch of aud

Details Method and apparatus for changing the timbre and/or pitch of aud Method and apparatus for changing the timbre and/or pitch of aud

1997-01-14

2000-04-04

Donels, Jeffrey W.

Music

Instruments

Electrical musical tone generation

G10H 700

Patent

active

060463953

ABSTRACT:
A method for shifting the timbre and/or pitch of an input signal samples the input signal at a first rate and stores the samples in a memory buffer. A digital signal processor resamples the stored input signal at a rate that differs from the first rate at which the input note is originally sampled and stores the resampled input signal in a second memory buffer. A pitch shifter shifts the pitch of the input signal by periodically scaling the resampled input signal by a window function to create an output signal. The rate at which the resampled data is replicated by the window function determines the pitch of the output signal.

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