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Window optimization in linear prediction analysis

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

The autocorrelation method of linear prediction (LP) analysis relies on a window for data extraction. We propose an approach to optimize the window which is based on gradient-descent. It is shown that the optimized window can enhance the performance of LP-based speech coding algorithms; in most instances, improvement in performance comes at no additional computational cost, since it merely requires a window replacement.

Published in:

Speech and Audio Processing, IEEE Transactions on  (Volume:11 ,  Issue: 6 )