METHOD FOR ADAPTING COMPRESSED ACOUSTIC MODEL USING ADAPTATION TRAINING DATA

PURPOSE: A method for adapting compressed acoustic model is provided to adapt acoustic models that are quantized and compressed using adaptation training data in multi-dimensional sub-spaces. CONSTITUTION: Acoustic models quantized in sub-spaces are adapted using adaptation training data. The acoust...

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Bibliographic Details
Main Author GUNAWARDANA ASELA J
Format Patent
LanguageEnglish
Korean
Published 20.11.2004
Edition7
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:PURPOSE: A method for adapting compressed acoustic model is provided to adapt acoustic models that are quantized and compressed using adaptation training data in multi-dimensional sub-spaces. CONSTITUTION: Acoustic models quantized in sub-spaces are adapted using adaptation training data. The acoustic models are compressed into multi-dimensional sub-spaces. A codebook is generated for each of the sub-spaces. Adaptation transform is estimated and applied to codewords of codebooks. The codebook is divided into regression classes. The regression classes reflect whether Gaussian distribution belongs to a language class such as a consonant, a vowel or mute.
Bibliography:Application Number: KR20040034101