NDLI: A pole-zero model for cepstrally smoothed speech spectra

Content Provider	IEEE Xplore Digital Library
Author	Yegnanarayana, B.
Copyright Year	1981
Description	Author affiliation: ISRO Satellite Centre, Bangalore, India (Yegnanarayana, B.)
Abstract	In this paper a new method for representation of cepstrally smoothed speech spectra by a pole-zero model is presented. In this method the cepstrally smoothed log spectrum is split into two parts, one corresponding to the response of the numerator polynomial of the model transfer function and the other part to the response of the denominator polynomial of the model transfer function. The decomposition is achieved by using the properties of the derivative of phase spectra of minimum phase signals. The inverse of each of these responses is approximated by a small number of auto-regressive coefficients. The method is illustrated with several examples of speech spectra. The residual from the inverse pole-zero model system can be used to obtain information about the excitation signal. The technique proposed in this paper can be used to represent any arbitrary smoothed log spectrum by a pole-zero model of appropriate order.
Starting Page	347
Ending Page	350
File Size	132259
Page Count	4
File Format	PDF
DOI	10.1109/ICASSP.1981.1171304
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1981-03-30
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Poles and zeros Speech analysis Transfer functions Cepstral analysis Filters Polynomials Inverse problems Signal analysis Performance analysis Linear systems
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
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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