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A noise-contained voice signal is cepstrum-analyzed (2, 528) to determine a peak and a mean-value (3, 4, 538, 548) thereof. When a peak is present, the signal is determined to be a vowel portion, and when a mean-value is large, the signal is determined to be a consonant portion, thereby allowing a v...

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Bibliographic Details
Main Authors KANE, JOJI, NOHARA, AKIRA
Format Patent
LanguageFinnish
Published 12.02.1991
Edition5
Subjects
ACOUSTICS
MUSICAL INSTRUMENTS
PHYSICS
SPEECH ANALYSIS OR SYNTHESIS
SPEECH OR AUDIO CODING OR DECODING
SPEECH OR VOICE PROCESSING
SPEECH RECOGNITION
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Summary:A noise-contained voice signal is cepstrum-analyzed (2, 528) to determine a peak and a mean-value (3, 4, 538, 548) thereof. When a peak is present, the signal is determined to be a vowel portion, and when a mean-value is large, the signal is determined to be a consonant portion, thereby allowing a voice portion to be accurately determined. Further, utilizing the detected result, a noise is accurately canceled (8, 588).
Bibliography:Application Number: FI19910000679