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A High Accuracy Speaker Confirmation Method

A speaker confirmation and speaker technology, applied in speech analysis, instruments, etc., can solve the problems of decreased accuracy and difficulty in meeting the needs of practical applications, and achieve the effect of improving recognition accuracy

Inactive Publication Date: 2015-10-21
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Description
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AI Technical Summary

Problems solved by technology

However, when the number of people to be confirmed continues to increase, the accuracy of the above method will drop significantly. When the number of people increases to a certain scale, it will be difficult to meet the needs of practical applications. This is an important problem that text-independent speaker confirmation technology needs to solve

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  • A High Accuracy Speaker Confirmation Method
  • A High Accuracy Speaker Confirmation Method
  • A High Accuracy Speaker Confirmation Method

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Embodiment Construction

[0097] In order to better illustrate the purpose and advantages of the present invention, the implementation of the method of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples.

[0098] All the following tests are completed on the same computer, the specific configuration is: Intel dual-core CPU (main frequency 1.8G), 1G memory, WindowsXP SP3 operating system.

[0099] first link

[0100] This link will use the voice files of the TIMIT audio library to describe in detail the specific process of speaker registration / training and speaker confirmation in the present invention when the target speaker size is 200.

[0101] The TIMIT speech library is a standard library jointly produced by MIT, Stanford Research Institute, and Texas Instruments. It contains the corpus of 630 speakers (438 males and 192 females), each with 10 voices.

[0102] Randomly select all voice data of 200 people from all speakers, and t...

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Abstract

The invention relates to a text-independent method of confirming a speaker, and discloses a method of confirming the speaker combining a Turbo-Boost sorting algorithm with 2D-Haar audio features. The method comprises firstly using basic voice frequency characteristics to form an audio feature pattern, then utilizing the audio feature pattern to extract the 2D-Haar audio features, using the turbo-Boost algorithm to respectively achieve the screening of the 2D-Haar audio features and the training of a speaker classifier through two rounds of iterative operation, and finally using the trained speaker classifier to achieve the confirming of the speaker. Compared with the prior art, the high-precision method of confirming the speaker can obtain higher accuracy under identical operation consumption, and is especially suitable for a speaker confirming occasion the strict requirements on operation speed and speaker confirming accuracy, such as a telephone automatic answering system, a computer identity authentication system, a high-secret access control system and the like.

Description

technical field [0001] The invention relates to a high-precision text-independent speaker confirmation method, which belongs to the technical field of biological identification; from the perspective of technical realization, it also belongs to the technical field of computer science and voice processing. Background technique [0002] Speaker Verification (Speaker Verification) technology is to use the characteristics of each speaker's voice signal to extract speaker information from a piece of voice, and then confirm whether a certain piece of voice is spoken by a designated person. The system only gives "accept" Or "reject" two choices, is a "one-to-one" pattern recognition problem. [0003] speaker confirm technology and speakers identify Technology belongs to the category of speaker recognition (Speaker Recognition, SR). Unlike speaker recognition technology, speaker recognition technology has stricter requirements for accuracy and recognition time. In recent years, au...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10L17/02G10L17/14
Inventor 罗森林谢尔曼潘丽敏
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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