Title :
HNM: a simple, efficient harmonic+noise model for speech
Author :
LaRoche, Julie ; Stylianou, Yunnis ; Moulines, Eric
Author_Institution :
Dept. Signal, Telecom Paris, France
Abstract :
HNM, a new analysis/modification/synthesis model based on a harmonic+noise representation of the speech signal is presented. The HNM model has several specificities: (1) HNM assumes the speech signal to be composed of a deterministic part and of a stochastic part, (2) the deterministic part is assumed to contain only harmonically related sinusoids with linearly varying complex amplitudes, and (3) the stochastic part is modeled in both the time domain and the frequency domain. The pitch-synchronous analysis technique makes use of a coarse estimate of the pitch and simultaneously calculates the various parameters of the model and refines the pitch estimate. Because the signal is decomposed into a deterministic and a stochastic part, different modification methods can be applied to each part, yielding more natural resyntheses
Keywords :
harmonic analysis; noise; signal representation; speech processing; speech synthesis; time-frequency analysis; analysis model; deterministic part; frequency domain; harmonic model; harmonically related sinusoids; linearly varying complex amplitudes; modification model; noise model; parameters; pitch estimation; pitch-synchronous analysis; speech signal representation; stochastic part; synthesis model; time domain; Amplitude estimation; Filters; Ink; Integrated circuit modeling; Integrated circuit synthesis; Signal processing; Signal synthesis; Speech analysis; Speech synthesis; Vectors;
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 1993. Final Program and Paper Summaries., 1993 IEEE Workshop on
Conference_Location :
New Paltz, NY
Print_ISBN :
0-7803-2078-6
DOI :
10.1109/ASPAA.1993.379970
