Minimum Variance Distortionless Response (MVDR) modeling of voiced speech

Manohar Murthi, Bhaskar D. Rao

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

19 Citations (Scopus)

Abstract

In this paper we propose the MVDR method, which is based upon the Minimum Variance Distortionless Response (MVDR) spectrum estimation method, for modeling voiced speech. Developed to overcome some of the shortcomings of Linear Prediction models, the MVDR method provides better models for medium and high pitch voiced speech. The MVDR model is an all-pole model whose spectrum is easily obtained from a modest non-iterative computation involving the Linear Prediction coefficients thereby retaining some of the computational attractiveness of LPC methods. With the proper choice of filter order, which is dependent on the number of harmonics, the MVDR spectrum models the formants and spectral powers of voiced speech exactly. An efficient reduced model order MVDR method is developed to further enhance its applicability. An extension of the reduced order MVDR method for recovering the correct amplitudes of the harmonics of voiced speech is also presented.

Original languageEnglish (US)
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Editors Anon
PublisherIEEE
Pages1687-1690
Number of pages4
Volume3
StatePublished - 1997
Externally publishedYes
EventProceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5) - Munich, Ger
Duration: Apr 21 1997Apr 24 1997

Other

OtherProceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5)
CityMunich, Ger
Period4/21/974/24/97

Fingerprint

linear prediction
harmonics
retaining
Poles
poles
filters
coefficients

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics

Cite this

Murthi, M., & Rao, B. D. (1997). Minimum Variance Distortionless Response (MVDR) modeling of voiced speech. In Anon (Ed.), ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 3, pp. 1687-1690). IEEE.

Minimum Variance Distortionless Response (MVDR) modeling of voiced speech. / Murthi, Manohar; Rao, Bhaskar D.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. ed. / Anon. Vol. 3 IEEE, 1997. p. 1687-1690.

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

Murthi, M & Rao, BD 1997, Minimum Variance Distortionless Response (MVDR) modeling of voiced speech. in Anon (ed.), ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 3, IEEE, pp. 1687-1690, Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5), Munich, Ger, 4/21/97.
Murthi M, Rao BD. Minimum Variance Distortionless Response (MVDR) modeling of voiced speech. In Anon, editor, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 3. IEEE. 1997. p. 1687-1690
Murthi, Manohar ; Rao, Bhaskar D. / Minimum Variance Distortionless Response (MVDR) modeling of voiced speech. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. editor / Anon. Vol. 3 IEEE, 1997. pp. 1687-1690
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