All-pole modeling of speech based on the minimum variance distortionless response spectrum

Manohar Murthi, Bhaskar D. Rao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

In this paper, we develop more fully all-pole modeling of speech based on the Minimum Variance Distortionless Response (MVDR) spectrum. It is shown that MVDR modeling provides a class of all-pole models that are flexible for tackling a wide variety of speech modeling objectives. In particular, the high order MVDR spectrum provides a robust model for all types of speech including voiced speech, un-voiced speech, and mixed spectra. Furthermore, it is simply obtained, and is always superior to the Linear Prediction (LP) spectrum. With its high quality modeling, the high order MVDR spectrum is suitable for use as a high quality reference spectrum, or for applications like speech recognition. In addition, the MVDR model possesses flexibility for developing low order all-pole models suitable for compression applications. In particular, Reduced Order MVDR all-pole models are shown to often outperform conventional LP filters in modeling all types of speech spectra. For more accurate modeling of a set of speech spectral samples in the frequency domain, MVDR modeling facilitates the development of superior Weighted All-Pole filters.

Original languageEnglish (US)
Title of host publicationConference Record of the Asilomar Conference on Signals, Systems and Computers
EditorsM.P. Farques, R.D. Hippenstiel
PublisherIEEE Comp Soc
Pages1061-1065
Number of pages5
Volume2
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1997 31st Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2) - Pacific Grove, CA, USA
Duration: Nov 2 1997Nov 5 1997

Other

OtherProceedings of the 1997 31st Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2)
CityPacific Grove, CA, USA
Period11/2/9711/5/97

Fingerprint

Poles
Speech recognition

ASJC Scopus subject areas

  • Hardware and Architecture
  • Signal Processing
  • Electrical and Electronic Engineering

Cite this

Murthi, M., & Rao, B. D. (1998). All-pole modeling of speech based on the minimum variance distortionless response spectrum. In M. P. Farques, & R. D. Hippenstiel (Eds.), Conference Record of the Asilomar Conference on Signals, Systems and Computers (Vol. 2, pp. 1061-1065). IEEE Comp Soc.

All-pole modeling of speech based on the minimum variance distortionless response spectrum. / Murthi, Manohar; Rao, Bhaskar D.

Conference Record of the Asilomar Conference on Signals, Systems and Computers. ed. / M.P. Farques; R.D. Hippenstiel. Vol. 2 IEEE Comp Soc, 1998. p. 1061-1065.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Murthi, M & Rao, BD 1998, All-pole modeling of speech based on the minimum variance distortionless response spectrum. in MP Farques & RD Hippenstiel (eds), Conference Record of the Asilomar Conference on Signals, Systems and Computers. vol. 2, IEEE Comp Soc, pp. 1061-1065, Proceedings of the 1997 31st Asilomar Conference on Signals, Systems & Computers. Part 1 (of 2), Pacific Grove, CA, USA, 11/2/97.
Murthi M, Rao BD. All-pole modeling of speech based on the minimum variance distortionless response spectrum. In Farques MP, Hippenstiel RD, editors, Conference Record of the Asilomar Conference on Signals, Systems and Computers. Vol. 2. IEEE Comp Soc. 1998. p. 1061-1065
Murthi, Manohar ; Rao, Bhaskar D. / All-pole modeling of speech based on the minimum variance distortionless response spectrum. Conference Record of the Asilomar Conference on Signals, Systems and Computers. editor / M.P. Farques ; R.D. Hippenstiel. Vol. 2 IEEE Comp Soc, 1998. pp. 1061-1065
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