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TSM Examples

To illustrate some fundamental points, let's look at some TSM waveforms for a test signal consisting of two constant-amplitude sinusoids near 400 Hz having frequencies separated by 10 Hz (to create an amplitude envelope having 10 beats/sec). We will perform a $ 2\times $ time expansion ($ 2\times $ ``slow-down'') using the following three algorithms:

The vocoder STFT frame size is set to 45 ms, the analysis hop size is 1/4 frame, or 11.25 ms, so the analysis frame rate is 89 Hz.

The results are shown in Figures 10.18 through 10.23.



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``Spectral Audio Signal Processing'', by Julius O. Smith III, W3K Publishing, 2011, ISBN 978-0-9745607-3-1.
Copyright © 2014-06-03 by Julius O. Smith III
Center for Computer Research in Music and Acoustics (CCRMA),   Stanford University
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