VOICEPRINT RECOGNITION METHOD AND SYSTEM APPLIED TO ELECTRIC POWER OPERATION

• Main Authors: JIANG, Zhiru, OU, Jianmei, LUO, Chenyi, CHEN, Jiwan, MO, Ziying, ZHU, Mingzeng, HAN, Jing, LIU, Xiaolan, SONG, Sihuang, HU, Kaibo, LV, Ming, LIANG, Hao, HUANG, Xinhua, LIANG, Chaocong, FENG, Hua, LI, Hefeng, ZHOU, Sujun, QIN, Qiuqin, MA, Hongkang, LIANG, Wei, WEN, Liming
• Format: Patent
• Language: Chinese; English; French
• Published: 16.03.2023
• Subjects: ACOUSTICS; MUSICAL INSTRUMENTS; PHYSICS; SPEECH ANALYSIS OR SYNTHESIS; SPEECH OR AUDIO CODING OR DECODING; SPEECH OR VOICE PROCESSING; SPEECH RECOGNITION

Disclosed are a voiceprint recognition method and system applied to electric power operation. The method comprises: collecting voiceprint information of different persons in an electric power operation scene; removing noise and interference information in the voiceprint information; performing non-negative matrix factorization (NMF) on the de-noised voiceprint information to extract features; obtaining a speech spectrogram of the voiceprint information on the basis of the voiceprint information subjected to the NMF processing; processing the speech spectrogram on the basis of a convolutional neural network (CNN) voiceprint recognition algorithm; and outputting a voiceprint recognition result on the basis of a CNN training model. According to embodiments of the present invention, the NMF is used for extracting the features in the feature extraction stage, and multi-dimensional features are fused, so that a more accurate recognition effect can be obtained. L'invention divulgue un procédé et un système de reconn