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The unimportance of phase in speech enhancement

by: D. Wang, Jae Lim
Acoustics, Speech and Signal Processing, IEEE Transactions on, Vol. 30, No. 4. (August 1982), pp. 679-681, doi:10.1109/tassp.1982.1163920  Key: citeulike:11602779

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Abstract

The importance of Fourier transform phase in speech enhancement is considered. Results indicate that a more accurate estimation of phase is unwarranted in speech enhancement at the S/N ratios where the intelligibility scores of unprocessed speech range from 5 to 95 percent, if the phase estimate is used to reconstruct speech by combining it with an independently estimated magnitude or to reconstruct speech using the phase-only signal reconstruction algorithm.


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