Formant extraction from linear-prediction phase spectra

Yegnanarayana, B (1978) Formant extraction from linear-prediction phase spectra. In: Journal of the Acoustical Society of America, 63 (5). 1638-1640 .

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Abstract

Extraction of formant information from linear-prediction phase spectra is proposed. It is shown that the derivative of phase spectrum gives reliable formant information. Since the phase spectra for several resonators in cascade are additive, the resonance peaks are additive in the derivative of the phase spectrum unlike in the magnitude spectrum and hence the problem of identifying merged peaks is very easily solved by this method. Application of the method is illustrated through examples of linear-prediction spectra obtained for simulated models and for actural speech segments.

Item Type:	Journal Article
Publication:	Journal of the Acoustical Society of America
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	28 Sep 2010 08:40
Last Modified:	28 Sep 2010 08:40
URI:	http://eprints.iisc.ac.in/id/eprint/32494

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