Improved modeling of audio signals by modifying transient locations

Author

Vafin, Renat ; Heusdens, Richard ; van de Par, Steven ; Kleijn, W. Bastiaan

Author_Institution

Dept. of Speech, Music & Hearing, R. Inst. of Technol., Stockholm, Sweden

fYear

2001

fDate

2001

Firstpage

143

Lastpage

146

Abstract

We propose a method for obtaining an improved representation of transients in audio signals. The representation is based on a damped sinusoidal model. To improve the representation, transient locations are modified in such a way that a transient can start only at the beginning of a sinusoidal segment. The introduced modifications facilitate a reduction of the number of damped sinusoids needed to model a transient well and eliminate pre-echo artifacts. We verify with a listening test that the modifications do not result in a perceptual difference between the original and modified audio signals

Keywords

audio coding; parameter estimation; signal representation; audio signals; damped sinusoidal model; modified transient locations; parameter estimation; parametric audio coding; pre-echo artifacts; restricted time segmentation; Algorithm design and analysis; Audio coding; Auditory system; Bit rate; Laboratories; Multiple signal classification; Signal analysis; Signal processing; Speech processing; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Signal Processing to Audio and Acoustics, 2001 IEEE Workshop on the

Conference_Location

New Platz, NY

Print_ISBN

0-7803-7126-7

Type

conf

DOI

10.1109/ASPAA.2001.969563

Filename

969563