SPEECH ANALYSIS BY USING A NOVEL, BLOCK RECURSIVE ALGORITHM FOR AUDITORY SPECTROGRAMS (BRASS)

The BRASS algorithm for the block-recursive generation of auditory spectrograms is described & illustrated by applications to synthetic glottal pulses & natural Finnish speech samples. The technique of frequency warping is used to transform uniform resolution Fourier analysis to a nonuniform...

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Published in:Linguistica Uralica Vol. 34; no. 3; pp. 213 - 219
Main Author: Laine, Unto K.
Format: Journal Article
Language:English
Published: 23.01.1998
Subjects:
Finnish
Sound Spectrographs
Voice Recognition
ISSN:0868-4731
Online Access:Get full text
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Abstract The BRASS algorithm for the block-recursive generation of auditory spectrograms is described & illustrated by applications to synthetic glottal pulses & natural Finnish speech samples. The technique of frequency warping is used to transform uniform resolution Fourier analysis to a nonuniform auditory scale; the algorithm acts on an M-vector of signal samples at a given time index to generate an N-vector of ERB-rate-scale filterbank outputs & combines a recursion matrix & a spectral state control matrix. An auditory spectrogram of Finnish /ae/ is displayed for five glottal closures & openings, & an auditory spectrogram for the sentence memo paalle is displayed & segmented using the algorithm. 5 Figures, 7 References. J. Hitchcock
AbstractList The BRASS algorithm for the block-recursive generation of auditory spectrograms is described & illustrated by applications to synthetic glottal pulses & natural Finnish speech samples. The technique of frequency warping is used to transform uniform resolution Fourier analysis to a nonuniform auditory scale; the algorithm acts on an M-vector of signal samples at a given time index to generate an N-vector of ERB-rate-scale filterbank outputs & combines a recursion matrix & a spectral state control matrix. An auditory spectrogram of Finnish /ae/ is displayed for five glottal closures & openings, & an auditory spectrogram for the sentence memo paalle is displayed & segmented using the algorithm. 5 Figures, 7 References. J. Hitchcock
Author Laine, Unto K.
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SubjectTerms Finnish
Sound Spectrographs
Voice Recognition
Title SPEECH ANALYSIS BY USING A NOVEL, BLOCK RECURSIVE ALGORITHM FOR AUDITORY SPECTROGRAMS (BRASS)
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