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Energy-based nonuniform time-scale compression of audio signals

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2 Author(s)
W. C. Chu ; Mobile Media Lab., DoCoMo USA Labs, San Jose, CA, USA ; K. Lashkari

A novel method for time-scale compression based on a time-varying time-scale ratio is developed, with the ratio determined by the short-term energy of the signal. The target operating area of the technique is in very low ratio time-scale compression, where it is shown that improvement in perceptual quality is achievable at low computational complexity.

Published in:

IEEE Transactions on Consumer Electronics  (Volume:49 ,  Issue: 1 )