Voice endpoint detection method and device

An endpoint detection and speech technology, applied in speech analysis, speech recognition, instruments, etc., can solve the problem of high computational complexity and achieve the effect of high computational complexity and low complexity

Inactive Publication Date: 2016-08-17
LETV HLDG BEIJING CO LTD +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] Embodiments of the present invention provide a voice endpoint detection method and device, which are used to solve the defect of high computational complexity of the model-based voice endpoint recognition method in the prior art, and realize fast and efficient voice endpoint recognition

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  • Voice endpoint detection method and device

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Embodiment Construction

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0021] figure 1 It is the technical flow chart of Embodiment 1 of the present application, combined with figure 1 In the embodiment of the present application, in a speech endpoint detection method, the training method of the phoneme acoustic model can be realized by the following steps:

[0022] Step S110: classify the phonemes of the text ac...

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Abstract

The embodiment of the invention provides a voice endpoint detection method and device. Voice signal frames to be detected are received and the feature vectors of the voice signal frames are acquired; the optimal arrival path of the voice signal frames in a phoneme acoustic model trained in advance is acquired according to the feature vectors; and when non-mute signal frames are detected according to the optimal arrival path and existence of the preset number of mute signal frames before the non-mute signal frames is judged, the non-mute signal frames are judged to be voice endpoints. Low-complexity and high-efficiency voice endpoint detection is realized.

Description

technical field [0001] Embodiments of the present invention relate to the field of voice technology, and in particular, to a voice endpoint detection method and device. Background technique [0002] Speech endpoint detection is a very important step in speech recognition. The so-called voice endpoint detection is to find out the start point and end point of the voice from a given voice signal. Its purpose is to separate the effective speech signal from the useless noise signal. In the speech recognition system, correct and effective endpoint detection can not only reduce the amount of calculation and shorten the processing time, but also eliminate the noise interference of the silent segment. Improve the accuracy of speech recognition. [0003] Research has found that even in quiet environments, more than half of the errors in speech recognition systems may be primarily due to endpoint detection. In addition, in speech synthesis, coding and other systems, efficient spot d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L15/05G10L25/87
CPCG10L15/05G10L25/87
Inventor 侯锐
Owner LETV HLDG BEIJING CO LTD
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