Accurate estimation of harmonic amplitudes in voiced speech based on harmonic transform

Author

Zubrycki, Piotr ; Petrovsky, Alexander A.

Author_Institution

Fac. of Comput. Sci., Bialystok Tech. Univ., Bialystok

fYear

2008

fDate

14-17 Sept. 2008

Firstpage

47

Lastpage

50

Abstract

This paper presents a frame-based method for estimation of instantaneous amplitudes and frequencies of pitch harmonics. Proposed method assumes that the speech signal is a combination of voiced (harmonic) and unvoiced (noise) components present in whole speech band. Harmonic transform is used as a frequency analysis tool which kernel is synchronized with time-varying pitch frequency. The speech signal is divided into a set of subbands with center frequency corresponding to the pitch and in each subband Hilbert transform is used as an estimator of instantaneous amplitude of each harmonic.

Keywords

amplitude estimation; frequency estimation; speech processing; transforms; frame-based method; frequency analysis tool; harmonic amplitude estimation; harmonic transform; pitch harmonics; time-varying pitch frequency; voiced speech; Acoustic noise; Amplitude estimation; Discrete Fourier transforms; Frequency conversion; Frequency estimation; Noise level; Phase noise; Power harmonic filters; Speech analysis; Speech enhancement; harmonic parameters estimation; speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals and Electronic Systems, 2008. ICSES '08. International Conference on

Conference_Location

Krakow

Print_ISBN

978-83-88309-47-2

Electronic_ISBN

978-83-88309-52-6

Type

conf

DOI

10.1109/ICSES.2008.4673353

Filename

4673353