Method for time scaling of a sequence of input signal values

作者: Markus Schlosser

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摘要: The invention relates to a digital signal processing technique that changes the length of an audio and, thus, effectively its play-out speed. This is used for frame rate conversion or sound effects in music production. Time scaling may further be fast forward slow-motion play-out. According said method waveform similarity overlap add approach modified such maximized determined among measures sub-sequence pairs each comprising to-be-matched from input window and matching search wherein comprise at least two which first pair comprises second different to-be-matched. allows finding with higher than WSOLA based on single results less perceivable artefacts.

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