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Method and device for evaluating voice quality

A voice quality and voice sample technology, applied in the communication field, can solve the problems of voice quality impairment, not considering the impact of network client jitter buffer size, client packet loss, etc., to achieve the effect of good experience

Active Publication Date: 2016-01-27
CHINA MOBILE COMM GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0012] It can be seen that in the existing objective assessment scheme of voice quality based on IP network, the impact of network jitter value and client jitter buffer size on voice quality is not considered
In the actual network, not only the network transmission process will cause data packet loss, but also packet loss will occur in the client. This packet loss is caused by the jitter value of the network and the jitter buffer size of the client. Therefore, through Pure network packet loss simulation cannot accurately evaluate the impairment of voice quality

Method used

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  • Method and device for evaluating voice quality
  • Method and device for evaluating voice quality

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Embodiment Construction

[0064] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0065] Embodiments of the present invention provide a method and device for evaluating voice quality, which can more accurately evaluate voice quality based on an IP network.

[0066] figure 2 It is a schematic flow chart of the evaluation method of voice quality in the embodiment of the present invention, such as figure 2 As shown, this embodiment includes:

[0067] Step 101: Set call parameters required for voice calls, the call parameters at least include network transmission delay, maximum value of client jitter buffer and network jitter;

[0068] Step 102: Obtain degraded speech samples corresponding to multiple sets of call parameters respectively, and calculate a transmission impairment coefficient R according to the obtaine...

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Abstract

The invention provides a method and device for evaluating voice quality and belongs to the communication field. The method for evaluating voice quality comprises steps of: setting conversation parameters required by voice conversation, wherein the conversation parameter at least includes a maximum value of client jitter buffer memory and network jitter; acquiring degeneration voice samples corresponding to multiple groups of conversation parameters, computing a transmission damage coefficient R according to the acquired multiple degeneration voice samples and the conversation parameters; and obtaining a mean opinion score (MOS) of the voice quality according to the transmission damage coefficient R. The method and the device may accurately evaluate the voice quality based on an IP network.

Description

technical field [0001] The present invention relates to the communication field, in particular to a voice quality evaluation method and device. Background technique [0002] With the continuous development of communication technology, TD-LTE (TimeDivisionLongTermEvolution, time-division long-term evolution) network has entered people's field of vision. Among the many services provided by the TD-LTE system, the voice service is the most basic and important service. Moreover, voice services are no longer carried in the traditional circuit domain switching mode, but in the same packet domain switching mode as data services, and voice services will be realized through IP networks. Therefore, compared with the traditional voice service, the parameters of the IP network layer will become the key factors affecting the quality of experience (Quality of Experience, QOE) of the voice service in the TD-LTE system. Therefore, how to objectively evaluate the network parameters in the TD-...

Claims

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Application Information

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IPC IPC(8): H04M3/22G10L25/60
Inventor 张剑寅刘宝光费泽松王晶
Owner CHINA MOBILE COMM GRP CO LTD
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