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Determining Mean Opinion Scores (MOS) for Variable Bit Rate Audio Streams

  • US 20130155866A1
  • Filed: 12/15/2011
  • Published: 06/20/2013
  • Est. Priority Date: 12/15/2011
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • performing, by one or more computer systems,monitoring a communication over a network;

    detecting (i) a first portion of the communication including packets having a first packet payload size, and (ii) a second portion of the communication including packets having a second packet payload size, the second packet payload size different from the first packet payload size;

    deriving (i) a first bit rate corresponding to the first portion of the communication based, at least in part, upon the first packet payload size, and (ii) a second bit rate corresponding to the second portion of the communication based, at least in part, upon the second packet payload size;

    calculating (i) a first Mean Opinion Score (MOS) for the first portion of the communication based, at least in part, upon the first bit rate, and (ii) a second MOS for the second portion of the communication based, at least in part, on the second bit rate; and

    generating an overall MOS for the communication based, at least in part, upon (i) the first and second MOS, and (ii) a distribution of the packets having the first and second packet payload sizes.

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