Abstract
We show on results taken from recent studies from our laboratory that conventional speech analysis techniques for ASR (such as Mel cepstrum or PLP) in combination with dynamic features (such as estimates of derivatives of cepstral feature trajectories) are sub-optimal and could be improved. The improvements can be derived by employing large labeled databases which allow for studying how is the linguistic information distributed in time and in frequency as well as for a design of discrimitative spectral basis and temporal RASTA filters.
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Hermansky, H. (1999). Data-Driven Analysis of Speech. In: Matousek, V., Mautner, P., OcelÃková, J., Sojka, P. (eds) Text, Speech and Dialogue. TSD 1999. Lecture Notes in Computer Science(), vol 1692. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-48239-3_2
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DOI: https://doi.org/10.1007/3-540-48239-3_2
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