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Title:
VOICEPRINT MODEL TRAINING METHOD, VOICE RECOGNITION METHOD, DEVICE AND EQUIPMENT AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/047343
Kind Code:
A1
Abstract:
A voiceprint model training method, a voice recognition method, device and equipment and a medium. The voiceprint model training method comprises: carrying out universal background model training by using training voice data in at least two service scenarios to obtain a universal background model (S11); carrying out feature extraction on intra-domain voice data and out-of-domain voice data by using the universal background model so as to obtain corresponding intra-domain voiceprint features and out-of-domain voiceprint features (S12); carrying out probability linear discriminant analysis model training on the basis of the out-of-domain voiceprint features to obtain an out-of-domain probability linear discriminant analysis model (S13); and adaptively training the out-of-domain probability linear discriminant analysis model on the basis of the intra-domain voiceprint features to obtain a target probability linear discriminant analysis model (S14). The described voiceprint model training method overcomes the problem of being unable to obtain multiple pieces of voice data of a single person in certain service scenarios, and ensures the recognition effect of the target probability linear discriminant analysis model.

Inventors:
WANG, Jianzong (Ping An Building, No. 3 Bagua. Road Bagualing, Futian Distric, Shenzhen Guangdong 0, 518000, CN)
GUO, Hui (Ping An Building, No. 3 Bagua. Road Bagualing, Futian Distric, Shenzhen Guangdong 0, 518000, CN)
XIAO, Jing (Ping An Building, No. 3 Bagua. Road Bagualing, Futian Distric, Shenzhen Guangdong 0, 518000, CN)
Application Number:
CN2017/107829
Publication Date:
March 14, 2019
Filing Date:
October 26, 2017
Export Citation:
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Assignee:
PING AN TECHNOLOGY (SHENZHEN) CO., LTD. (Ping An Building, No. 3 Bagua. Road Bagualing, Futian Distric, Shenzhen Guangdong 0, 518000, CN)
International Classes:
G10L17/04; G10L17/02; G10L17/14
Foreign References:
CN107146601A2017-09-08
CN106875949A2017-06-20
CN102024455A2011-04-20
CN104464738A2015-03-25
CN106971732A2017-07-21
CN106971736A2017-07-21
CN104240706A2014-12-24
US20080249774A12008-10-09
US20160042739A12016-02-11
Attorney, Agent or Firm:
ZHONGDING INTELLECTUAL PROPERTY AGENCY (Room B, 4F ChengTou Business CenterNo. 546 Qinglin Road, City Center,Longcheng Street, Longgang Distric, Shenzhen Guangdong 2, 518172, CN)
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