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Speaker recognition method and system

A speaker recognition and speaker model technology, applied in the field of identity recognition, can solve the problems affecting system performance, voice signal distortion, and the training model cannot simulate test data well, achieving high robustness and pertinence, improving The effect of channel differences

Active Publication Date: 2011-12-07
IFLYTEK CO LTD
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Problems solved by technology

However, in practical applications, the actual detection environment and the model training environment are often different. Any change in the communication channel or communication tool in the voice communication will cause different degrees of distortion of the voice signal, which will lead to a mismatch between the training data and the test acquisition channel. The model cannot simulate the test data well, which affects the system performance

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  • Speaker recognition method and system

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Embodiment Construction

[0062] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0063] The speaker recognition method and system of the embodiment of the present invention, aiming at the problem that the system performance is degraded due to the channel mismatch between the test voice and the training voice when the detection environment and the model training environment are different, collects user registration voice signals under different channels , and use the registered voice signals under these different channels to train to generate a s...

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Abstract

The invention relates to the technical field of identity identification, and discloses a method and a system for identifying a speaker. The method comprises the following steps of: collecting user registration voice signals under different channels; respectively extracting voiceprint characteristic sequences from the collected voice signals; generating a speaker model relative to a user by training the voiceprint characteristic sequences; and performing speaker identification of the user according to the speaker model and a universal background model which is trained and generated in advance.The method and the system for identifying the speaker disclosed by the invention can be applicable to different channel environments. The system performance is improved.

Description

technical field [0001] The invention relates to the technical field of identification, in particular to a speaker identification method and system. Background technique [0002] Speaker recognition is to judge the identity of the speaker based on the collected voice signal. This technology mainly has two applications, namely, speaker confirmation and speaker identification. Speaker confirmation refers to judging whether the current input voice is the pronunciation of the declared target speaker, which is a one-to-one judgment problem; and speaker recognition refers to selecting the speaker corresponding to the current voice input from the target speaker set , which is a one-to-many model identification problem. Speaker recognition technology has a wide range of applications in military, national security, criminal investigation, banking, securities and other financial fields. [0003] At present, the most mainstream technical route for speaker recognition is the GMM-UBM al...

Claims

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Application Information

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IPC IPC(8): G10L17/00
Inventor 柳林魏思胡国平胡郁何婷婷吴晓如刘庆峰
Owner IFLYTEK CO LTD
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