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Audio quality evaluation method and system

A technology of audio quality and evaluation method, applied in speech analysis, instruments, etc., can solve the problems of poor universality and inapplicability, and achieve the effect of strong universality

Active Publication Date: 2016-10-05
IFLYTEK CO LTD
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AI Technical Summary

Problems solved by technology

Since this evaluation method only considers a certain index of audio quality, the evaluation results are only of reference significance for specific occasions, but cannot be applied to other occasions, and the universality is poor

Method used

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  • Audio quality evaluation method and system
  • Audio quality evaluation method and system

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Embodiment Construction

[0066] 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.

[0067] Embodiments of the present invention provide a method for evaluating audio quality, such as figure 1 shown, including:

[0068] Step 101: Receive audio data input by a user.

[0069] Step 102: Perform transcoding processing on the audio data to obtain multiple audio sampling point data.

[0070] Specifically, the transcoding tool can be used to transcode the audio data according to the format requirements of the output audio data and the encoding information carried in the user input audio data. For example, ffmpeg can be selected as the transcoding tool to transcode the audio data. The transcoded audio format is single-channel, the sampling rate is 16k, and the sampling accuracy is 16bit wav format. S...

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Abstract

The invention discloses an audio quality evaluation method and an audio quality evaluation system, which belong to the technical field of speech signal processing. The audio quality evaluation method comprises the steps of: receiving audio data input by a user; carrying out transcoding treatment on the audio data to obtain a plurality of pieces of audio sampling point data; calculating shock-wave noise sever amplitude point ratios, mean loudness, signal-to-noise ratios, noise energy and spectrum upper-limit frequencies of the plurality of pieces of audio sampling point data separately; and calculating an audio quality score according to the shock-wave noise sever amplitude point ratios, the mean loudness, the signal-to-noise ratios, the noise energy and the spectrum upper-limit frequencies. The audio quality evaluation method is used for evaluating audio quality through integrating multiple audio quality parameters, is high in general applicability of evaluation results, and can meet the needs of most application occasions.

Description

technical field [0001] The invention relates to the technical field of speech signal processing, in particular to an audio quality evaluation method and system. Background technique [0002] With the continuous development of digital audio processing technology, the requirements for audio quality are getting higher and higher. How to determine the appropriate evaluation standard to evaluate the audio quality, so as to obtain the audio that meets the requirements, has become an important issue at present. [0003] In the early stage of the development of audio technology, since there were no objective evaluation standards, a large number of audio listeners were usually organized to evaluate and score the audio quality by manually listening to various audios. Because this method requires a large number of personnel to participate, the economic cost is high, the experiment period is long, and it is based on the preferences of each evaluator, the standards are subjective and di...

Claims

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Application Information

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IPC IPC(8): G10L25/60
Inventor 杨将杨溥吴维昊
Owner IFLYTEK CO LTD
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