NDLI: An auditory-based transfrom for audio signal processing

Content Provider	IEEE Xplore Digital Library
Author	Qi Li
Copyright Year	2009
Description	Author affiliation: Li Creative Technologies, Inc., Florham Park, New Jersey 07932, USA (Qi Li)
Abstract	An auditory-based transform is presented in this paper. Through an analysis process, the transform coverts time-domain signals into a set of filter bank output. The frequency responses and distributions of the filter bank are similar to those in the basilar membrane of the cochlea. Signal processing can be conducted in the decomposed signal domain. Through a synthesis process, the decomposed signals can be synthesized back to the original signal through a simple computation. Also, fast algorithms for discrete-time signals are presented for both the forward and inverse transforms. The transform has been approved in theory and validated in experiments. An example on noise reduction application is presented. The proposed transform is robust to background and computational noises and is free from pitch harmonics. The derived fast algorithm can also be used to compute continuous wavelet transform.
Starting Page	181
Ending Page	184
File Size	390566
Page Count	4
File Format	PDF
ISBN	9781424436781
ISSN	19311168
DOI	10.1109/ASPAA.2009.5346541
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal processing Signal processing algorithms Discrete transforms Filter bank Signal synthesis Continuous wavelet transforms Signal analysis Time domain analysis Frequency Biomembranes cochlea Noise reduction robust audio signal processing fast transform
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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