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.
Cite as: Valente, F., Hermansky, H. (2006) Discriminant linear processing of time-frequency plane. Proc. Interspeech 2006, paper 1300-Mon2BuP.2, doi: 10.21437/Interspeech.2006-119
@inproceedings{valente06_interspeech,
author={Fabio Valente and Hynek Hermansky},
title={{Discriminant linear processing of time-frequency plane}},
year=2006,
booktitle={Proc. Interspeech 2006},
pages={paper 1300-Mon2BuP.2},
doi={10.21437/Interspeech.2006-119}
}