METHOD OF ESTIMATING QUALITY OF AUDIO SIGNAL, APPARATUS AND COMPUTER-READABLE MEDIUM STORING PROGRAM Russian patent published in 2012 - IPC H04L12/56 G10L19/00 

FIELD: information technology.

SUBSTANCE: apparatus for estimating quality of an audio signal includes a unit for calculating frequency of loss of audio packets which, when at least one audio packet to be estimated exists in form of once- or constantly generated losses of IP packets, calculates the frequency of loss of audio packets based on information from the received IP packets, by calculating loss of packets as one-time loss of audio packets regardless of duration, a unit for calculating the average exposure time which calculates, based on information from the received IP packets, the average exposure time which acts at the average time during which the quality of the audio signal is affected, when the frequency of losing audio packets is equal to 1, and a subjective quality estimating unit which estimates the value of subjective quality based on the frequency of losing audio packets and the average time of action.

EFFECT: estimation of subjective quality of audio data in multimedia telecommunication services.

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