Patent
1994-05-19
1997-03-11
Tung, Kee M.
395 249, 395 263, 395 252, G10L 506
Patent
active
056110197
ABSTRACT:
The speech detection apparatus comprises: a reference model maker for extracting a plurality of parameters for a speech detection from training data, and for making a reference model based on the parameters; a parameter extractor for extracting the plurality of parameters from each frame of an input audio signal; and a decision device for deciding whether or not the audio signal is speech, by comparing the parameters extracted from the input audio signal with the reference model. The reference model maker makes the reference model for each phoneme. The decision devices includes: a similarity computing unit for comparing the parameters extracted from each frame of the input audio signal with the reference model, and for computing a similarity of the frame with respect to the reference model; a phoneme decision unit for deciding a phoneme of each frame of the input audio signal based on the similarity computed for each phoneme; and a final decision unit for deciding whether or not a specific period of the input audio signal including a plurality of frames is speech, based on the result of the phoneme decision for the plurality of frames.
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Nakatoh Yoshihisa
Norimatsu Takeshi
Matsushita Electric - Industrial Co., Ltd.
Tung Kee M.
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