REAL-TIME SPEAKER-ADAPTIVE SPEECH RECOGNITION APPARATUS AND METHOD
First Claim
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1. A speech recognition apparatus, comprising:
- a pitch estimation unit configured to extract a speech section from a speech signal and to estimate a pitch of the speech section;
a speech feature extraction unit configured to extract a speech feature for speech recognition from the speech section based on the estimated pitch; and
a speech recognition unit configured to perform speech recognition with respect to the speech signal based on the extracted speech feature.
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Abstract
A speech recognition apparatus and method for real-time speaker adaptation are provided. The speech recognition apparatus may estimate a pitch of a speech section from an inputted speech signal, extract a speech feature for speech recognition based on the estimated pitch, and perform speech recognition with respect to the speech signal based on the speech feature. The speech recognition apparatus may be adaptively normalized depending on a speaker. Thus, the speech recognition apparatus may extract a speech feature for speech recognition, and may improve a performance of speech recognition based on the extracted speech feature.
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Citations
15 Claims
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1. A speech recognition apparatus, comprising:
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a pitch estimation unit configured to extract a speech section from a speech signal and to estimate a pitch of the speech section; a speech feature extraction unit configured to extract a speech feature for speech recognition from the speech section based on the estimated pitch; and a speech recognition unit configured to perform speech recognition with respect to the speech signal based on the extracted speech feature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A speech recognition method, comprising:
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extracting a speech section from a speech signal and estimating a pitch of the speech section; extracting a speech feature for speech recognition in the speech section based on the estimated pitch; and performing speech recognition with respect to the speech signal based on the extracted speech feature. - View Dependent Claims (10)
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11. A voice recognition apparatus, comprising:
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a pitch estimation unit configured to detect a pitch of a voice frame generated by a voice; a voice feature extraction unit configured to extract a voice feature from the detected pitch of the voice frame; and a voice recognition unit configured to perform voice recognition from the extracted voice feature. - View Dependent Claims (12, 13, 14, 15)
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Specification