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 (CN)
GUO HUI (CN)
XIAO JING (CN)
GUO HUI (CN)
XIAO JING (CN)
Application Number:
PCT/CN2017/107829
Publication Date:
March 14, 2019
Filing Date:
October 26, 2017
Export Citation:
Assignee:
PING AN TECH SHENZHEN CO LTD (CN)
International Classes:
G10L17/04; G10L17/02; G10L17/14
Foreign References:
| CN107146601A | 2017-09-08 | |||
| CN106875949A | 2017-06-20 | |||
| CN102024455A | 2011-04-20 | |||
| CN104464738A | 2015-03-25 | |||
| CN106971732A | 2017-07-21 | |||
| CN106971736A | 2017-07-21 | |||
| CN104240706A | 2014-12-24 | |||
| US20080249774A1 | 2008-10-09 | |||
| US20160042739A1 | 2016-02-11 |
Attorney, Agent or Firm:
ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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