Test method and apparatus for implementing voice quality objective evaluation

A technology for objective evaluation and voice quality, applied in voice analysis, transmission monitoring, instruments, etc., can solve the problems of expensive instruments, achieve the effect of simple and practical, accurate and reliable results, and convenient objective evaluation process

Inactive Publication Date: 2009-05-27
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The objective evaluation method is relatively simple and repeatable, but requires special testing instruments, and these instruments are usually expensive

Method used

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  • Test method and apparatus for implementing voice quality objective evaluation
  • Test method and apparatus for implementing voice quality objective evaluation

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Embodiment Construction

[0016] Below according to accompanying drawing and embodiment the present invention will be described in further detail:

[0017] Such as figure 2 Shown, the equipment and software that the present invention needs are: 1) a computer that sound card is housed, and Cool Edit software needs to be installed. The sound card should be of better quality, otherwise it may affect the voice evaluation results. 2) CoolEdit software: Cool Edit is a multi-track digital audio editing software that integrates recording, mixing and editing. It can work under Windows 95 / 98 / NT environment, and requires a sound card compatible with Windows to be installed in the system. The device of the present invention is used for playing, recording, editing and processing voice signal files. 3) pesqmain.exe: Executable file under DOS, implements PESQ objective evaluation algorithm according to ITU-T P.862 standard, uses .wav waveform file stored in PCM format, supports 8kHz and 16kHz sound sampling, and ...

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Abstract

A measurement method for objectively evaluating phone quality includes A. play: a dual track file plays original phone signals, in which the original signals played by one track are output as distorted output phone signals after processed by a device to be tested B. record: storing the distorted output signals and original signals played by the other track in a same sample rate C. comparing: comparing the two kinds of signals to get an evaluation result. A device includes units of play, record and compare in which, the said play unit inputs original phone signals, one track is connected with one of the record directly, the other is linked with the input of the device which output end links with the other one of the record, signals output from the two tracks of the record are input to the comparing unit.

Description

technical field [0001] The invention relates to voice testing, in particular to a testing method and device capable of realizing objective evaluation of voice quality. Background technique [0002] In order to fully understand the audio performance of the device, there are currently two ways to conduct voice evaluation. One is to organize a certain number of listeners to listen to the sound output by the audio processing device. 3), poor (2), poor (1) to score the sound, and finally get a mean opinion score (Mean Opinion Score, MOS), but this method consumes a lot of time, manpower and cost, and is often subject to human response The impact of the inherent non-repeatability of [0003] In view of the shortcomings of the subjective evaluation method, another method, that is, the objective evaluation method of sound based on objective measures has been proposed one after another. Among them, the objective evaluation method based on the human auditory model has a high correlat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04S1/00H04B17/00G10L25/60
Inventor 龙建军
Owner HUAWEI TECH CO LTD
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