NDLI: Estimation of the voicing cut-off frequency contour of natural speech based on harmonic and aperiodic energies

Content Provider	IEEE Xplore Digital Library
Author	Hermus, K. Girin, L. Van hamme, H. Irhimeh, S.
Copyright Year	2008
Description	Author affiliation: Dept. ESAT, Katholieke Univ. Leuven, Leuven (Hermus, K.)
Abstract	We present a new algorithm for the automatic estimation of the voicing cut-off frequency (VCO), i.e., the frequency that separates the periodic low-frequency part from the aperiodic high-frequency part in voiced segments of natural speech. Starting from the power spectrum of a two pitch period speech frame, we define the VCO to be located at the frequency for which the sum of the periodic and aperiodic energy in the spectral band below and above that frequency respectively, is maximised. By formulating the problem in terms of a score function we are able to apply a dynamic programming based smoothing technique. Remarkably smooth and accurate VCO contours were obtained, despite the simplicity of the proposed algorithm. In a formal evaluation the algorithm compares favourably to two existing VCO estimation techniques.
Starting Page	4473
Ending Page	4476
File Size	339544
Page Count	4
File Format	PDF
ISBN	9781424414833
ISSN	15206149
DOI	10.1109/ICASSP.2008.4518649
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-03-31
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Frequency estimation Cutoff frequency Natural languages Voltage-controlled oscillators Speech analysis Power harmonic filters Signal processing algorithms Acoustic noise Speech synthesis Speech processing speech processing spectral analysis speech coding speech synthesis
Content Type	Text
Resource Type	Article

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