Improved noise robustness of word HMMs based on weighted variance expansion for noisy speech recognition.
Sukeyasu KannoTetsuo FunadaPublished in: Systems and Computers in Japan (2005)
Keyphrases
- speech recognition
- noisy environments
- hidden markov models
- speech recognizer
- speech recognition systems
- wall street journal corpus
- word recognition
- speech recognizers
- speech signal
- keyword spotting
- automatic speech recognition
- background noise
- word error rate
- noisy speech
- speech processing
- speech synthesis
- speaker verification
- speech enhancement
- speaker identification
- language model
- pattern recognition
- handwriting recognition
- speech recognition technology
- neural network
- speaker independent
- speech retrieval
- machine learning
- noise level
- acoustic models
- speaker dependent
- information retrieval