Proceedings ArticleDOI
Speaker adaptation through vector quantization
Kiyohiro Shikano,Kai-Fu Lee,Raj Reddy +2 more
- Vol. 11, pp 2643-2646
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TLDR
Vector quantization (VQ) is a technique that reduces the computation amount and memory size drastically and is proposed in order to improve speaker-independent recognition.Abstract:
Vector quantization (VQ) is a technique that reduces the computation amount and memory size drastically. In this paper, speaker adaptation algorithms through VQ are proposed in order to improve speaker-independent recognition. The speaker adaptation algorithms use VQ codebooks of a reference speaker and an input speaker. Speaker adaptation is performed by substituting vectors in the codebook of a reference speaker for vectors of the input speaker's codebook, or vice versa. To confirm the effectiveness of these algorithms, word recognition experiments are carried out using the IBM office correspondence task uttered by 11 speakers. The total number of words is 1174 for each speaker, and the number of different words is 422. The average word recognition rate using different speaker's reference through speaker adaptation is 80.9%, and the rate within the second choice is 92.0%.read more
Citations
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References
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TL;DR: An efficient and intuitive algorithm is presented for the design of vector quantizers based either on a known probabilistic model or on a long training sequence of data.
Journal ArticleDOI
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Journal ArticleDOI
Discrete utterance speech recognition without time alignment
TL;DR: The results of a new method based on rate-distortion speech coding (speech coding by vector quantization), minimum cross-entropy pattern classification, and information-theoretic spectral distortion measures for discrete utterance speech recognition are presented.
Proceedings ArticleDOI
Isolated word recognition using phoneme-like templates
TL;DR: New technique for use in a word recognition system where word templates are represented as sequences of descrete phoneme-like (pseudo-phoneme) templates which are automatically determined from a training set of word utterances by a clustering technique.
Proceedings ArticleDOI
A real-time, isolated-word, speech recognition system for dictation transcription
TL;DR: The architecture of an experimental, real-time, isolated-word, speech recognition system with a 5,000-word vocabulary which can be used for dictating office correspondence is described and some recent experimental results obtained are given.