Zhenjun Yue

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According to HMM's strong representation capability of speech signal and GMM's better transformation effect, a method for LSF conversion using HMM combined with GMM is proposed. The theoretical derivation and flow diagram of this algorithm are offered, and gauss model is introduced to achieve the prosodic features transformation. The experiment is applied(More)
Applying language model in lip-reading system can greatly improve the recognition rate. But the traditional statistical language model depended on corpus excessively, so it could not be used in some special occasions with a small vocabulary corpus. In this paper, according to fuzzy mathematical theory, the fuzzy evaluation sets were firstly established.(More)
A novel method is proposed for speech model, which is used for speech transformation and speech recognition. This method divides segmentations of a speech into an adaptive segment, in which its speech wave is integrated and has approximate periods. A speech is divided into voiced speech and unvoiced speech by voice activity detection, which is widely used(More)
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