DocumentCode
942976
Title
Combined multiresolution (wide-band/narrow-band) spectrogram
Author
Cheung, Shiufun ; Lim, Jae S.
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Volume
40
Issue
4
fYear
1992
fDate
4/1/1992 12:00:00 AM
Firstpage
975
Lastpage
977
Abstract
Existing speech spectrograms-the wideband spectrogram and the narrowband spectrogram-are either deficient in time or frequency resolution. The authors present a method to combine the two spectrograms by evaluating the geometric mean of the corresponding short-time Fourier transform magnitudes. The combined spectrogram preserves the desirable visual features of the originals
Keywords
Fourier transforms; speech analysis and processing; combined multiresolution spectrogram; frequency resolution; geometric mean; narrowband spectrogram; short-time Fourier transform magnitudes; speech processing; speech spectrograms; time resolution; visual features; wideband spectrogram; Constraint theory; Energy resolution; Fourier transforms; Frequency; Image restoration; Narrowband; Signal resolution; Spectrogram; Speech analysis; Wideband;
fLanguage
English
Journal_Title
Signal Processing, IEEE Transactions on
Publisher
ieee
ISSN
1053-587X
Type
jour
DOI
10.1109/78.127970
Filename
127970
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