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Linear predictive coding of speech signals in a high ambient noise environment

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3 Author(s)
Kobatake, H. ; Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan ; Inari, J. ; Kakuta, S.

Preservation of both the spectral distribution and the periodicity of speech signals are essential in speech processing. This paper describes a method of speech coding in a high ambient noise environment and shows that the spectral envelope of speech signal is a most reliable information when the noise reduction method proposed in this paper is used. Also reported in this paper comparisons of several pitch extraction methods with extensive experimental data, based on which a pitch extraction method suited for noisy speech signals is proposed.

Published in:

Acoustics, Speech, and Signal Processing, IEEE International Conference on ICASSP '78.  (Volume:3 )

Date of Conference:

Apr 1978