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BBN BYBLOS and HARC February 1992 ATIS Benchmark Results
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In: DTIC (1992)
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Speaker Adaptation Using Multiple Reference Speakers
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In: DTIC (1989)
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Abstract:
We introduce a new technique for using the speech of multiple reference speakers as a basis for speaker adaptation in large vocabulary continuous speech recognition. In contrast to other methods that use a pooled reference model, this technique normalizes the training speech from multiple reference speakers to a single common feature space before pooling it. The normalized and pooled speech can then be treated as if it came from a single reference speaker for training the reference hidden Markov model (HMM). Our usual prohabilistic spectrum transformation can be applied to the reference HMM to model a new (target) speaker. In this paper, we describe our baseline (single reference speaker) speaker-adaptation system and give current performance results from a recent formal evaluation of the system. We also describe our proposal for adapting from multiple reference speakers and report on recent preliminary experimental results in support of the proposed technique. ; Supported in part by DARPA.
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Keyword:
*SPEECH RECOGNITION; ADAPTATION; MARKOV PROCESSES; MATHEMATICAL MODELS; MODELS; SPECTRA; TRAINING; TRANSFORMATIONS; Voice Communications
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URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA457475 http://www.dtic.mil/docs/citations/ADA457475
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