8th Annual Conference of the International Speech Communication Association

Antwerp, Belgium
August 27-31, 2007

MRASTA and PLP in Automatic Speech Recognition

S. R. Mahadeva Prasanna (1), Hynek Hermansky (2)

(1) Indian Institute of Technology Guwahati, India
(2) IDIAP Research Institute, Switzerland

This work explores different methods for combining estimated posterior probabilities from Multi-RASTA (MRASTA) and Perceptual Linear Prediction (PLP) features for Automatic Speech Recognition (ASR). The improved performance by the ASR system indicates the complementary nature of information present in MRASTA and PLP. Among the different combining methods explored, product gives best performance.

Full Paper

Bibliographic reference.  Prasanna, S. R. Mahadeva / Hermansky, Hynek (2007): "MRASTA and PLP in automatic speech recognition", In INTERSPEECH-2007, 1166-1169.