Intrinsic-cum-extrinsic normalization of formant data of vowels

Ananthapadmanabha, TV and Ramakrishnan, AG (2016) Intrinsic-cum-extrinsic normalization of formant data of vowels. In: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 140 (5).

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Abstract

Using a known speaker-intrinsic normalization procedure, formant data are scaled by the reciprocal of the geometric mean of the first three formant frequencies. This reduces the influence of the talker but results in a distorted vowel space. The proposed speaker-extrinsic procedure re-scales the normalized values by the mean formant values of vowels. When tested on the formant data of vowels published by Peterson and Barney, the combined approach leads to well separated clusters by reducing the spread due to talkers. The proposed procedure performs better than two top-ranked normalization procedures based on the accuracy of vowel classification as the objective measure. (C) 2016 Acoustical Society of America

Item Type:	Journal Article
Publication:	JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Additional Information:	Copy right for this article belongs to the ACOUSTICAL SOC AMER AMER INST PHYSICS, STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
Department/Centre:	Division of Electrical Sciences > Electrical Engineering
Date Deposited:	31 Jan 2017 05:12
Last Modified:	22 Feb 2019 09:31
URI:	http://eprints.iisc.ac.in/id/eprint/55979

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