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Measuring pitch and formant frequencies for a speech understanding system

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3 Author(s)
D. Tufts ; University of Rhode Island, Kingston, Rhode Island ; S. Levinson ; R. Rao

We present new techniques for the measurement of pitch period and formant frequencies. Individual pitch periods are estimated by finding local maxima in the power spectrum averaged over a frequency band that includes a formant. A spectral analysis is then performed for each pitch period over a data interval that is of shorter duration than the estimated pitch period. The pitch synchronous spectral analysis followed by post detection smoothing - preferably carried out over both time and frequency - leads to a spectrogram from which formant trajectories can be estimated by simple algorithms.

Published in:

Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '76.  (Volume:1 )

Date of Conference:

Apr 1976