Voice inquiry method of great Chinese vocabulary based on embedded system environment

Abstract

The invention relates to a speech enquiry method of Chinese large vocabulary in an embedded type environment, belonging to the speech enquiry field in the information technology. The method comprises the following steps that: a tone-free syllabary used in a speech recognition engine is generated; a syllable similarity table is generated; realtime monitoring of an input speech signal is carried out, and continuous vocabulary speech signals through which a user expresses vocabulary content are picked up; the continuous vocabulary speech signals are divided into a plurality of monosyllabic vocabulary speech; all vocabulary with the length more than or equal to the syllable number of the vocabulary speech are picked up from a Chinese large vocabulary font library to form an equilong font library; the matching degrees of all vocabulary in the vocabulary speech and the equilong font library are calculated; and the calculated matching degrees are sized down to choose a final enquiry result. On the premise of ensuring higher accuracy, the speech enquiry method ensures that an enquiry function breaks the limitation on the font library number of a speech recognition engine and can complete a Chinese large vocabulary speech enquiry function which the speech recognition engine does not have.

Description

Speech query method of large Chinese vocabulary based on embedded environment technical field The invention belongs to the field of voice query in information technology, in particular to a voice query method with large Chinese vocabulary in an embedded environment. Background technique Voice query is to use voice recognition technology to identify and select a specific vocabulary from a specified vocabulary base according to the user's voice. The research work on speech recognition began in the 1950s, marked by the realization of the first speech recognition system that can recognize ten English digits in AT&T Bell Laboratory - the Audry system. IBM Corporation developed the Chinese ViaVoice speech recognition system in 1997, and developed the speech recognition system ViaVoice'98 that can recognize local accents such as Shanghainese, Cantonese and Sichuan dialect in the following year. It comes with a basic vocabulary of 32,000 words, which can be extended to 65,000 wor...

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Problems solved by technology

The purpose of the invention is to propose a Chinese large vocabulary voice query method in an embedded environment for the needs of current applications

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