NDLI: Optimal quantization of LSP parameters (speech coding)

Content Provider	IEEE Xplore Digital Library
Author	Soong, F.K. Juang, B.-H.
Copyright Year	1988
Description	Author affiliation: AT&T Bell Lab., Murray Hill, NJ, USA (Soong, F.K.; Juang, B.-H.)
Abstract	Two nonuniform aspects of the line spectrum pair (LSP) linear predictive coding parameters are investigated, including nonuniform statistical distributions and spectral sensitivities of adjacent LSP frequency differences. Based on these two nonuniform properties, a novel, globally optimal, scalar quantizer is designed for each differential LSP frequency. The design algorithm is based on dynamic programming, and minimization of a nontrivial data dependent spectral distortion is adopted as the optimality criterion. The LSP quantizer can achieve a 1-dB average log spectral distortion, which is the experimental difference limen (DL) for producing perceptually transparent spectral information at 32 bits/frame. The quantization performance is shown to be fairly robust across different speakers and databases.<>
Starting Page	394
Ending Page	397
File Size	407594
Page Count	4
File Format	PDF
ISSN	15206149
DOI	10.1109/ICASSP.1988.196600
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1988-04-11
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Quantization Speech coding Frequency Linear predictive coding Statistical distributions Algorithm design and analysis Dynamic programming Minimization methods Robustness Databases
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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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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