Title :
A system for finding speech formants and modulations via energy separation
Author :
Hanson, Helen M. ; Maragos, Petros ; Potamianos, Alexandros
Author_Institution :
Res. Lab. of Electron., MIT, Cambridge, MA, USA
fDate :
7/1/1994 12:00:00 AM
Abstract :
This correspondence presents an experimental system that uses an energy-tracking operator and a related energy separation algorithm to automatically find speech formants and amplitude/frequency modulations in voiced speech segments. Initial estimates of formant center frequencies are provided by either LPC or morphological spectral peak picking. These estimates are then shown to be improved by a combination of bandpass filtering and iterative application of energy separation
Keywords :
amplitude modulation; band-pass filters; filtering and prediction theory; frequency modulation; iterative methods; linear predictive coding; spectral analysis; speech analysis and processing; LPC; amplitude modulation; bandpass filtering; energy separation algorithm; energy-tracking operator; experimental system; formant center frequencies; frequency modulation; iterative application; morphological spectral peak picking; speech formants; voiced speech segments; Amplitude modulation; Band pass filters; Bandwidth; Filtering; Frequency estimation; Frequency modulation; Gabor filters; Linear predictive coding; Resonance; Speech processing;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
