Method and device for evaluating voice quality of voice over Internet protocol (VOIP)

Abstract

The invention discloses a method and a device for evaluating the voice quality of a voice over Internet protocol (VOIP). The method comprises the following steps of: monitoring and capturing a data packet in real time; judging whether the monitored and captured data packet is a preset data packet of a VOIP client or not, and arranging the monitored and captured data packet into a data packet queue if the monitored and captured data packet is the preset data packet of the VOIP client; performing voice stream processing on the data packet arranged into the data packet queue, and acquiring a voice data packet; and performing voice quality evaluation coefficient calculation according to the acquired voice data packet, and evaluating the voice quality. By the method and the device, voice quality evaluation reliability can be improved.

Description

technical field [0001] The invention relates to network voice quality test technology, in particular to a method and device for evaluating the voice quality of voice over Internet Protocol (VOIP, Voice over Internet Protocol). Background technique [0002] The continuous innovation and development of IP technology has made the network IP a development trend. For example, the public switched telephone network (PSTN, Public Switched Telephone Network) in the fixed network is developing towards the trend of combining with the IP backbone network, and the mobile network is also developing. Gradually merged with the IP network, the IP network will serve as a unified carrier for user voice, data and signaling. However, because the IP network is not designed to support real-time voice communication, it adopts the principle of "best effort", that is, the IP network does not guarantee the packet loss rate, delay and jitter, and these delays, jitter and packet loss, etc. The variable...

AI Technical Summary

Problems solved by technology

[0011] However, the above-mentioned objective voice quality evaluation methods, such as PSQM and PESQ, are mainly based on the traditional telephone network, and are used to analyze the problems of individual devices. They only analyze network voice problems from the perspective of the difference between sending and receiving signals, and cannot reflect problems such as delay and jitter. Data network-specific problems such as packet loss and packet loss do not take into account the impact of network failures on user perception, and the reliability of voice quality assessment is low, so it is not suitable for voice quality assessment of IP-based network transmission

Moreover, due to the need to pay attention to network damage factors with comprehensive data, there are many input parameters, which are based on complex formulas, which are only applicable to network tests with limited codecs and network conditions, and voice quality evaluation is complicated and cannot meet the needs of existing network operators. Network Quality Assessment Test Requirements

Images