TIME COMPRESSION/EXPANSION WITHOUT PITCH CHANGE

摘要

An apparatus and method are disclosed for converting an input signal (10) having a frequency related information sustained over a first duration of ti me into an output signal (100) sustained over a second duration of time at substantially the same first frequency by adding or subtracting to the effective wavelength (113) of the output signal (100). Preferably, the signa ls are converted in digital form with samples added or subtracted to frequency convert the signal.