Acoustic vowel trans-word modeling and decoding method and system for continuous digital recognition

A technology of digital recognition and modeling methods, applied in speech recognition, speech analysis, instruments, etc., can solve problems such as unsatisfactory effects

Active Publication Date: 2005-09-28
PANASONIC CORP
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Problems solved by technology

This whole character modeling method has achieved good results in digit recognition systems in English and other Western languages; but for Chinese digit recognition, the effect of this whole character modeling method is not ideal

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  • Acoustic vowel trans-word modeling and decoding method and system for continuous digital recognition
  • Acoustic vowel trans-word modeling and decoding method and system for continuous digital recognition
  • Acoustic vowel trans-word modeling and decoding method and system for continuous digital recognition

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Embodiment Construction

[0026] specific implementation plan

[0027] Firstly, the basic principle of speech recognition will be described below. Speech recognition includes two basic processes, namely the training process and the recognition process. The main task of the training process is to use a large number of speech training samples to establish an acoustic model to describe the knowledge of the acoustic layer. In a complex recognition system, it is also necessary to use a large amount of text corpus to train a language model to describe language-level knowledge. In the recognition process, the acoustic model and language model obtained in the training process are used to decode the speech sample to be tested and recognize it as text.

[0028] Compared with English and other languages, the problem of Chinese numeral recognition is more difficult, mainly because the pronunciation of Chinese numerals is more easily confused. Investigating the pronunciation of Chinese numerals and the actual sy...

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Abstract

An acoustic modeling method of Chinese continuous digit identification includes setting up individual model for different initial consonant and simple or compound vowel of Chinese continuous digit, defining context relativity and its acoustic model to accurately describe voice of Chinese continuous digit, applying hidden Markov model as basic model presentation and utilizing cluster algorithm to carry out train of model parameter for obtaining acoustic model of continuous digit. The method and system of search-decode as well as acoustic modeling system are also disclosed.

Description

technical field [0001] The patent of the present invention relates to a modeling method, a decoding method and a system for Chinese continuous digit speech recognition. More specifically, it relates to a method and system for modeling and searching and decoding sound and rhyme cross-words for Chinese continuous numeral recognition. Background technique [0002] Speech recognition technology is a technology that allows machines to convert voice signals into corresponding text or commands through the process of recognition and understanding. The combination of speech recognition technology and speech synthesis technology can enable people to get rid of the keyboard through voice input, operate through voice commands, and communicate with machines by voice. In the past two decades, with the rapid development of computer technology, speech recognition technology has made remarkable progress, and it has begun to move from the laboratory to the market. It is expected that in the...

Claims

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Application Information

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IPC IPC(8): G10L15/06G10L15/14G10L19/00
Inventor 贾磊马龙
Owner PANASONIC CORP
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