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1. (WO2017177484) VOICE RECOGNITION-BASED DECODING METHOD AND DEVICE

Pub. No.:    WO/2017/177484    International Application No.:    PCT/CN2016/081334
Publication Date: Fri Oct 20 01:59:59 CEST 2017 International Filing Date: Sat May 07 01:59:59 CEST 2016
IPC: G10L 15/02
Applicants: AISPEECH CO., LTD.
苏州思必驰信息科技有限公司
SHANGHAI JIAO TONG UNIVERSITY
上海交通大学
Inventors: YU, Kai
俞凯
ZHOU, Weida
周伟达
CHEN, Zhehuai
陈哲怀
DENG, Wei
邓威
XU, Tao
徐涛
Title: VOICE RECOGNITION-BASED DECODING METHOD AND DEVICE
Abstract:
A voice recognition-based decoding method and device. The method comprises: receiving voice information to extract an acoustic feature (S101); computing information about the acoustic feature according to a connectionist temporal classification model (S102); if a frame in the information about the acoustic feature is a non-empty model frame, searching linguistic information using a weighted finite state transducer adapted to acoustic modelling information and storing historical information, or otherwise, discarding the frame (S103). By constructing a connectionist temporal classification model, acoustic modeling becomes more accurate. By using an improved weighted finite state transducer, model representation becomes more efficient, thereby reducing 50% of the computation and the memory resource consumption. By using a phoneme synchronization method during decoding, the complexity and the number of times of computation during model searching are effectively reduced.