DocumentCode :
2762584
Title :
Evaluating the basilar membrane displacement for speech stimulus: a computational algorithm
Author :
Golipour, Ladan ; Gazor, Saeed
Author_Institution :
Dept. of Electr. & Compute Eng., Queen´´s Univ., Kingston, Ont.
fYear :
2005
fDate :
1-4 May 2005
Firstpage :
1501
Lastpage :
1504
Abstract :
This paper presents a new approach to an auditory model which matches closely the response patterns in physiological data for single tone inputs. The model evaluates the basilar membrane (BM) displacement which has a crucial role in signal decomposition in the auditory system. We employ the partial differential equations of the BM and its parameters measured for human auditory system, and evaluate the BM displacement for some speech stimulus. In order to solve these equations, we use short time Fourier transform (STFT), and compute BM displacement for some speech stimulus. The idea is to isolate the input signal in the vicinity of a time-window and try to follow the changes in input frequencies and their perception in the auditory system. The algorithm provides a new auditory spectrum of input speech which reflects a view of propagating signal on the BM for speech signals. This model is a signal decomposition tool that could be used for various speech and sound processing applications with significant potential in improving the perceptual quality of audio signals
Keywords :
Fourier transforms; audio signal processing; hearing; partial differential equations; speech processing; audio signal quality; basilar membrane displacement; computational algorithm; human auditory system; partial differential equations; short time Fourier transform; signal decomposition; signal propagation; sound processing applications; speech processing applications; speech stimulus; Anthropometry; Auditory system; Biomembranes; Displacement measurement; Fourier transforms; Humans; Partial differential equations; Pattern matching; Signal resolution; Speech analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical and Computer Engineering, 2005. Canadian Conference on
Conference_Location :
Saskatoon, Sask.
ISSN :
0840-7789
Print_ISBN :
0-7803-8885-2
Type :
conf
DOI :
10.1109/CCECE.2005.1557264
Filename :
1557264
Link To Document :
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