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Systems and methods for automatic evaluation of subjective quality of packetized telecommunication signals while varying implementation parameters

  • US 6,965,597 B1
  • Filed: 10/05/2001
  • Issued: 11/15/2005
  • Est. Priority Date: 10/05/2001
  • Status: Expired due to Fees
First Claim
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1. A method of automatically determining a subjective measure of quality of signals over a packet-switched network, comprising:

  • transmitting input signals to a model of the packet-switched network to obtain transmittal input signals wherein the model of the packet-switched network includes a bursty loss model in which a start of a packet burst is determined according to a Bernoulli trial, and a burst length is Poisson distributed;

    altering the transmitted input signals using the model of the packet-switched network to obtain altered signals, the altered signals representing results of transmitting the transmitted input signals through the packet-switched network;

    modifying the altered signals to obtain output signals;

    measuring an objective quality of the output signals based on the input signals; and

    transforming the objective quality to the subjective measure of quality.

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