8th European Conference on Speech Communication and Technology

Geneva, Switzerland
September 1-4, 2003


Local Averaging and Differentiating of Spectral Plane for TRAP-Based ASR

Frantisek Grezl, Hynek Hermansky

Oregon Health & Science University, USA

Local frequency and time averaging and differentiating operators, using three neighboring points of critical-band time-frequency plane, are used to process the plane prior to its use in TRAP-based ASR. In that way, five alternative TRAP-based ASR systems (the original one and the time/frequency integrated/ differentiated ones)are created. We show that the frequency differentiating operator improves performance of the TRAP-based ASR.

Full Paper

Bibliographic reference.  Grezl, Frantisek / Hermansky, Hynek (2003): "Local averaging and differentiating of spectral plane for TRAP-based ASR", In EUROSPEECH-2003, 1017-1020.