Communication equipment voice quality evaluation testing system and testing method

Abstract

The invention provides a communication equipment voice quality evaluation testing system, which comprises an upper computer, a leading audio transmitting / receiving module, a leading audio control module, a voice evaluation core processing module and a tested radio station, wherein the upper computer is connected to the voice evaluation core processing module by virtue of an upper computer connecting interface; the leading audio control module is connected to the voice evaluation core processing module by virtue of the leading audio transmitting / receiving module; both the leading audio control module and the voice evaluation core processing module are connected to the tested radio station by virtue of an audio output interface; and the tested radio station is in feedback connection to the leading audio control module and the voice evaluation core processing module by virtue of an audio acquisition interface. The invention also discloses a testing method of the testing system. The invention is applicable to the generation, receiving and voice quality testing of standard voice of such communication equipment as the radio station and the like; and an objective and accurate evaluation result can be obtained.

Description

technical field [0001] The invention relates to the technical field of communication voice quality analysis, in particular to a communication equipment voice quality evaluation testing system and testing method. Background technique [0002] Voice quality evaluation can be divided into two ways: subjective evaluation and objective evaluation. One is a subjective method. This method is to select multiple users to listen to a section of audio samples passed through the network and give them an evaluation score. This is called MOS (MeanOpinionScore) evaluation, and 5 represents the best quality. , while 1 is the lowest quality. The disadvantages of using this method are: time-consuming, labor-intensive, and high requirements for the subjects. [0003] Considering that the subjective method of listening test requires multiple users to be selected for testing, and the cost is relatively high, the researchers proposed an objective evaluation method. At present, there are three ...

AI Technical Summary

Problems solved by technology

The disadvantages of using this method are: time-consuming, labor-intensive, and high requirements for the subjects

[0005] In the process of using communication equipment and the communication system composed of it, the detection of call audio quality has always been an important content, but the traditional audio detection mostly uses manual detection, which is a subjective evaluation method

At present, there are also some test methods and test instruments for objective evaluation of voice quality. However, most of these test methods and test instruments are applied to end-to-end digital communication voice quality measurement, such as VOIP systems, which cannot accurately measure voice data on analog channels. Record the start and end time of the voice transmission, you cannot record the score

On the other hand, there are limitations in selecting a single voice sample for scoring. If the sequential test of multiple samples can more accurately represent the impairment characteristics of the voice, there is no separate channel to transmit the voice sample number without changing the existing communication mode of the communication device. , the existing test equipment cannot realize the test of multiple voices

The test equipment based on the E model is aimed at the evaluation of telephone voice quality, and the selection of parameters does not match the evaluation of data and radio voice. In addition, such equipment cannot achieve quasi-real-time voice quality evaluation

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