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Voice evaluating method and system

An evaluation method and voice technology, applied in voice analysis, instruments, etc., can solve problems such as unsatisfactory error detection effects, achieve the effect of weakening the influence of boundaries and improving evaluation performance

Active Publication Date: 2018-04-06
广州讯飞易听说网络科技有限公司
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Problems solved by technology

[0003] The present invention provides a speech evaluation method and system to solve the problem that the error detection effect of confusing words in the existing spoken language error detection is not satisfactory

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  • Voice evaluating method and system

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Embodiment Construction

[0061] In order to enable those skilled in the art to better understand the solutions of the embodiments of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the drawings and implementations.

[0062] Firstly, a brief description will be given below of the voice evaluation method in the prior art. The evaluation method usually includes the following steps:

[0063] Step 1: receiving user voice signal input, that is, examinee voice input.

[0064] Step 2: feature extraction of the speech signal, which may further include noise reduction preprocessing of the speech signal, etc.

[0065] The speech signal features refer to vectors that can characterize the user's pronunciation characteristics, and usually can extract multi-dimensional Mel Frequency Cepstrum Coefficient (MFCC) features that match the training set.

[0066] Step 3: Obtain the posterior probability of the state according to the pre-trained...

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Abstract

The invention discloses a voice evaluating method and system. The voice evaluating method comprises the following steps: receiving user voice data; carrying out evolution unit segmentation on user voice data, so as to obtain evolution units; and acquiring a voice evaluating result according to spectrograms and vectors of the evolution units and a pre-constructed first voice evaluating model. According to the method and the system, the accuracy of the voice evaluating result can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of voice evaluation, in particular to a voice evaluation method and system. Background technique [0002] Standard mandarin is of great significance in people's economy and life, and the scope of implementation of mandarin test is becoming wider and wider. For large-scale exams, the cost of manual scoring is very high, and machine-assisted manual scoring will be the development trend of all test scoring in the future. With the milestone development of speech recognition and related technologies, the results of machine scoring have approached or even exceeded the level of manual scoring. However, there are still some confusing words in the oral evaluation, and the evaluation effect is not satisfactory. Contents of the invention [0003] The present invention provides a speech evaluation method and system to solve the problem that the error detection effect of easily confused words in the existing spoken l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/30G10L25/51
CPCG10L25/30G10L25/51
Inventor 乔鹏程吴奎潘青华
Owner 广州讯飞易听说网络科技有限公司
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