Instantaneous and frequency-warped techniques for source separation and signal parametrization

Author

Wang, Avery L.

Author_Institution

Chromatic Res. Inc., Mountain View, CA, USA

fYear

1995

fDate

15-18 Oct 1995

Firstpage

47

Lastpage

50

Abstract

This paper summarizes several contributions to the study of audio signal parameterization and source separation. The philosophy of frequency-warped signal processing provides powerful means for separating the AM and FM contributions to the MS bandwidth of a complex-valued, frequency-varying sinusoid p[n], transforming it into a signal with slowly-varying parameters. The use of frequency- and harmonic-locked loops to track the phase variation of analytic signals provides the necessary accurate instantaneous frequency information to drive frequency-warped filtering

Keywords

acoustic signal processing; AM contribution; FM contribution; MS bandwidth; analytic signals; audio signal; filtering; frequency-locked loops; frequency-varying sinusoid; frequency-warped technique; harmonic-locked loops; instantaneous frequency information; instantaneous technique; phase variation; signal parametrization; signal processing; slowly-varying parameters; source separation; Bandwidth; Frequency locked loops; Harmonic analysis; Information analysis; Information filtering; Information filters; Signal analysis; Signal processing; Source separation; Tracking loops;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Signal Processing to Audio and Acoustics, 1995., IEEE ASSP Workshop on

Conference_Location

New Paltz, NY

Print_ISBN

0-7803-3064-1

Type

conf

DOI

10.1109/ASPAA.1995.482910

Filename

482910