NDLI: Evaluation of a statistical approach to voiced-unvoiced-silence analysis for telephone-quality speech

Content Provider	IEEE Xplore Digital Library
Author	Rabiner, L. R. Schmidt, C. E. Atal, B. S.
Copyright Year	1922
Description	Recently, a statistical-decision approach to the problem of voiced-unvoiced-silence detection of speech was proposed by Atal and Rabiner. This method was found to perform well on high-quality speech. However, the five speech parameters used in the analysis were not found to be as good for telephone-quality speech. Thus, an investigation was undertaken to determine a suitable set of parameters that would provide a reliable voiced-unvoiced-silence decision across a variety of standard telephone connections. A large number of parameters (70) were included in the investigation, including 12 lpc coefficients, 12 correlation coefficients, 12 parcor coefficients, 12 lpc partial error terms, etc. Many of the parameters were immediately eliminated because they provided almost no separability between the three decision classes. The remaining parameters were used in a knockout optimization to determine the five best parameters to use for a voiced-unvoiced-silence analysis. Various error weights were investigated to see what types of errors occurred and how they could be minimized. Finally, the use of the Itakura two-pole spectral normalization was investigated to see its effect on the error scores.
Starting Page	455
Ending Page	482
Page Count	28
File Size	34865982
File Format	PDF
ISSN	00058580
Volume Number	56
Issue Number	3
Language	English
Publisher	American Telephone and Telegraph Company (AT&T)
Publisher Date	1977-01-01
Access Restriction	Subscribed
Rights Holder	Bell Labs
Content Type	Text
Resource Type	Article
Subject	Engineering

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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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