Volume 1 Number 5 (Dec. 2009)
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IJCEE 2009 Vol.1 (5): 656-665 ISSN: 1793-8163
DOI: 10.7763/IJCEE.2009.V1.102

A New Algorithm for Voice Signal Compression (VSC) and Analysis Suitable for Limited Storage Devices Using MatLab

Shiv Kumar, Vijay K Chaudhari, R. K. Singh, and Dinesh Varshney

Abstract—This research work reveals that Voice Signal Compression (VSC) is a technique that is used to convert the voice signal into encoded form when compression is required, it can be decoded at the closest approximation value of the original signal. This work presents a new algorithm to compress voice signals by using an “Adaptive Wavelet Packet Decomposition and Psychoacoustic Model”. The main goals of this research work is to transparent compression (48% to 50%) of high quality voice signal at about 45 kbps with same extension (i.e. .wav to .wav), second is evaluate compressed voice signal with original voice signal with the help of distortion and frequency spectrum analysis and third is to compute the signal to noise ratio (SNR) of the source file.For this, a filter bank is used according to psychoacoustic model criteria and computational complexity of the decoder. The bit allocation method is used for this which also takes the input from Psychoacoustic model. Filter bank structure generates quality of performance in the form of subband perceptual rate which is computed in the form of perceptual entropy (PE). Output can get best value reconstruction possible considering the size of the output existing at the encoder. The result is a variable-rate compression scheme for high-quality voice signal. This work is well suited to high-quality voice signal transfer for Internet and storage applications.

Index Terms—Matlab6.5, Wavelet Toolbox, Psychoacoustic Model, Algorithm

Shiv Kumar is with Department of Information Technology, Technocrat Institute of Technology-Bhopal (M.P.)-India (Mobile No.: +91- 9827318266, e-mail: shivksahu@rediffmail.com).
Asst. Prof. Vijay K Chaudhari is Department of Information Technology, Technocrat Institute of Technology-Bhopal (M.P.)-India (Mobile No.: +91-9893181833-e-mail: vijay_ashish@yahoo.com).
Dr. R.K. Singh is Director, MATS University, Raipur (C.G.), India. (Mobile No.: +91-9893623490, e-mail: vcrks@rediffmail.com).
Dr. Dinesh Varshney is with Multimedia Research Department, Multimedia regional centre, Madhya Pradesh Bhoj (Open) University, Khandwa road Campus, Indore (M.P.)-India (Mobile No.: +91-9826076903 email: vdinesh33@rediffmail.com).

Cite: Shiv Kumar, Vijay K Chaudhari, R. K. Singh and Dinesh Varshney, "A New Algorithm for Voice Signal Compression (VSC) and Analysis Suitable for Limited Storage Devices Using MatLab," International Journal of
Computer and Electrical Engineering vol. 1, no. 5, pp. 656-665, 2009.

General Information

ISSN: 1793-8163 (Print)
Abbreviated Title: Int. J. Comput. Electr. Eng.
Frequency: Quarterly
Editor-in-Chief: Prof. Yucong Duan
Abstracting/ Indexing: EI (INSPEC, IET), Ulrich's Periodicals Directory, Google Scholar, EBSCO, ProQuest, and Electronic Journals Library
E-mail: ijcee@iap.org

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