TY - GEN
T1 - A comparison of reconstructed phase spaces and cepstral coefficients for multi-band phoneme classification
AU - Indrebo, Kevin M.
AU - Povinelli, Richard J.
AU - Johnson, Michael T.
PY - 2004
Y1 - 2004
N2 - This paper examines the use of multi-band reconstructed phase spaces as models for phoneme classification. Sub-banding reconstructed phase spaces combines linear, frequency-based techniques with a nonlinear modeling approach to speech recognition. Experiments comparing the effects of filtering speech signals for both reconstructed phase space and traditional speech recognition approaches are presented. These experiments study the use of two non-overlapping subbands for isolated phoneme classification on the TIMIT corpus. It is shown that while classification accuracy using Mel frequency cepstral coefficients as features does not improve with sub-banding, the accuracy increases from 36.1% to 42.0% using sub-banded reconstructed phase spaces to model the phonemes.
AB - This paper examines the use of multi-band reconstructed phase spaces as models for phoneme classification. Sub-banding reconstructed phase spaces combines linear, frequency-based techniques with a nonlinear modeling approach to speech recognition. Experiments comparing the effects of filtering speech signals for both reconstructed phase space and traditional speech recognition approaches are presented. These experiments study the use of two non-overlapping subbands for isolated phoneme classification on the TIMIT corpus. It is shown that while classification accuracy using Mel frequency cepstral coefficients as features does not improve with sub-banding, the accuracy increases from 36.1% to 42.0% using sub-banded reconstructed phase spaces to model the phonemes.
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M3 - Conference contribution
AN - SCOPUS:10444251758
SN - 0780384075
T3 - 2004 7th International Conference on Signal Processing Proceedings, ICSP
SP - 637
EP - 640
BT - 2004 7th International Conference on Signal Processing Proceedings, ICSP
T2 - 2004 7th International Conference on Signal Processing Proceedings, ICSP
Y2 - 31 August 2004 through 4 September 2004
ER -