Discriminant linear processing of time-frequency plane

Extending previous works done on considerably smaller data sets, the paper studies linear discriminant analysis of about 30 hours of phoneme-labeled speech data in the time-frequency domain. Analysis is carried both independently in time and frequency and jointly. Data driven spectral basis show similar frequency sensitivity as human hearing. LDA-derived temporal FIR filters are consistent with temporal lateral inhibition. Considerable improvement is obtained using first temporal discriminant.


Year:
2006
Publisher:
IDIAP
Keywords:
Note:
Published in ICSLP 2006
Laboratories:




 Record created 2006-06-08, last modified 2018-11-26

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