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Method for testing speech quality of audio conference

A technology of audio conferencing and testing methods, applied in speech analysis, instruments, etc., can solve problems such as poor sound quality and difficult sound quality evaluation, and achieve the effect of accurate sound quality testing

Active Publication Date: 2017-05-31
FUJIAN STAR NET WISDOM TECH CO LTD
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Problems solved by technology

Therefore, it is easy to obtain the source audio of each participant when testing the sound quality of an audio conference, but the target audio is already mixed data, which is generally different from the source audio, so it is not easy to Recommendation T P.862 conducts sound quality evaluation of PESQ. If audio evaluation is performed based on Recommendation ITU-T P.862, the sound quality must be relatively poor

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  • Method for testing speech quality of audio conference
  • Method for testing speech quality of audio conference
  • Method for testing speech quality of audio conference

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Embodiment Construction

[0021] see figure 1 As shown, a sound quality testing method of an audio conference, the method is: obtaining the source audio corresponding to each member participating in the audio conference;

[0022] Each member constructs a synthetic audio that is similar to the target audio based on the source audio through the audio system, that is, each member subtracts its own source audio and mixes the source audio of other members to form a synthetic audio. The synthetic audio is for each member Synthetic audio corresponding to itself;

[0023] Each member uses the ITU-T P.862 recommendation to perform PESQ calculations on the corresponding synthesized audio and the target audio data sent by the audio conference server to obtain the current real-time sound quality, and record the value of the sound quality to complete the sound quality test.

[0024] Wherein, after the audio conference server sends back the synthesized RTP message, it locally receives the RTP message data sent back...

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Abstract

The invention provides a method for testing the speech quality of an audio conference. The method comprises the steps that source audio corresponding to each member participating in the audio conference is acquired; each member constructs synthetic audio which is similar to target audio based on the source audio through an audio system, that is, each member mixes the source audio of the other members after deducting the source audio thereof so as to form synthetic audio, and the synthetic audio is the synthetic audio corresponding to each member; and each member carries out PESQ (Perceptual Evaluation of Speech Quality) calculation on the synthetic audio corresponding to each member and target audio data sent by a server of the audio conference by using an ITU-T P.862 proposal, and records a numerical value of the speech quality so as to complete testing for the speech quality. The method is simple and accurate in testing.

Description

technical field [0001] The invention relates to the technical field of communication equipment, in particular to a method for testing the sound quality of an audio conference. Background technique [0002] Among the existing sound quality test models, the most commonly used is PESQ (Perceptual evaluation of speech quality), that is, a test method for subjective speech quality evaluation. This method is an objective MOS (Mean Opinion Score, average subjective opinion score) value evaluation method provided by the ITU-T P.862 recommendation. To use the PESQ test method, there must be source audio and target audio. By calculating the PESQ of the source audio and the target audio, the difference between the sound quality before and after is judged, and then the MOS value is obtained. The MOS value is the quantization result of the current corresponding sound quality. [0003] In an audio conference, when each member joins the same conference, he can only hear audio that is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G10L25/60
Inventor 洪剑平陈锦辉
Owner FUJIAN STAR NET WISDOM TECH CO LTD
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