DocumentCode :
2802765
Title :
Towards a better balance in sinusoidal plus stochastic representation
Author :
van Schijndel, Nicolle H. ; Gómez, Mireiu ; Heusdens, Richard
Author_Institution :
Digital Signal Process. Group, Philips Res. Labs., Eindhoven, Netherlands
fYear :
2003
fDate :
19-22 Oct. 2003
Firstpage :
197
Lastpage :
200
Abstract :
Sound can be separated into a sinusoidal and a stochastic part, which is useful for transformation and compression. In such a sinusoidal plus stochastic representation, one of the important issues is to obtain a good separation. The paper presents a method to obtain this deterministic-stochastic balance. The method uses an iterative sinusoidal extraction method and a stopping criterion, which indicates when the (important) tonal components are extracted from the signal. Two measures are investigated, with and without psychoacoustic information, to be used in different applications. First, including psychoacoustic information, the stopping criterion is used in the sinusoidal analysis to construct a sinusoidal part that only contains psychoacoustically relevant tonal components. Second, deliberately not including psychoacoustic information, the stopping criterion is used, in a preprocessing stage before the noise analysis, to remove tonal components from the residual. An important advantage of this method is its simplicity and results are promising.
Keywords :
acoustic signal processing; audio signal processing; iterative methods; signal representation; stochastic processes; audio signal processing; compression; deterministic-stochastic balance; iterative sinusoidal extraction; psychoacoustic information; sound representation; stopping criterion; tonal components; transformation; Acoustic noise; Digital signal processing; Information analysis; Iterative methods; Laboratories; Noise shaping; Psychoacoustic models; Psychology; Stochastic processes; Stochastic resonance;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applications of Signal Processing to Audio and Acoustics, 2003 IEEE Workshop on.
Print_ISBN :
0-7803-7850-4
Type :
conf
DOI :
10.1109/ASPAA.2003.1285865
Filename :
1285865
Link To Document :
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