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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/16234
Title: Performance analysis of postprocessing algorithm and implementation on ARM7TDMI
Authors: Gupta M.
Kaushik B.K.
Chand L.
Published in: Proceedings of 2009 International Conference on Computer Engineering and Technology, ICCET 2009
Abstract: Due to rapid advancement in multimedia communication a growing need emerges for the implementation of audio algorithm in real time. Filters are often used in Digital Signal Processing applications. The filters fast processing is usually done on DSP chips. The calculation of the DSP operations like multiplication and accumulation (MAC) and convolution should be fast enough so that the audio can be heard in real time. In this paper we take up a post processing algorithm for audio that is used to control the Bass and Treble. For this purpose first order IIR Alter is employed. This Alter is used due to low computational burden that it places on DSP resources. The method that is presented here is based on transforming a prototype analog Alter to the desired digital filter using the technique of Bilinear Transformation for mapping the poles and zeros in Digital domain. The calculated coefficients are used for implementation of audio algorithm for ARM7TDMI. Implemented code is optimized for the real time operations. The analysis is done in MATLAB for showing the effect of Treble and Bass for different frequencies. The filter mapped in digital domain is stable. © 2009 IEEE.
Citation: Proceedings of 2009 International Conference on Computer Engineering and Technology, ICCET 2009, (2009), 560- 564. Singapore
URI: https://doi.org/10.1109/ICCET.2009.179
http://repository.iitr.ac.in/handle/123456789/16234
Issue Date: 2009
Keywords: ARM processor
Bilinear transform
Digital filter
IIR filter
PCM
Post processing
ISBN: 9.78E+12
Author Scopus IDs: 57202277235
57021830600
26632752300
Author Affiliations: Gupta, M., Department of Electronics and Electrical Engineering, G. B. Pant Engineering College, Pauri-Garhwal (Uttarakhand), India
Kaushik, B.K., Department of Electronics and Electrical Engineering, G. B. Pant Engineering College, Pauri-Garhwal (Uttarakhand), India
Chand, L., Division of Electronics and Communication Engineering, Netaji Subash Institute of Technology, New Delhi, India
Corresponding Author: Gupta, M.; Department of Electronics and Electrical Engineering, G. B. Pant Engineering College, Pauri-Garhwal (Uttarakhand), India; email: manojgupta35@yahoo.co.in
Appears in Collections:Conference Publications [ECE]

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