Standards:

> ITU-R
ITU-R Recommendation BS.1387-1, Method for Objective Measurements of Perceived Audio Quality (PEAQ), Revised 11/01

This Recommendation specifies a method for objective measurement of the perceived audio quality of a device under test, e.g. a low bit-rate codec. It is divided into two Annexes. Annex 1 gives the user a general overview of the method and includes four Appendices. Appendix 1 describes applications and test signals. Appendix 2 lists the Model Output Variables and discusses limitations of use and accuracy. Appendix 3 gives the outline of the model while Appendix 4 describes the principles and characteristics of objective perceptual audio quality measurement methods in general. Annex 2 provides the implementer with a detailed description of the method using two versions of the psycho-acoustic model that were developed during the integration phase where six models were combined. In Appendix 1 of Annex 2 the validation process of the objective measurement method is described. Appendix 2 of Annex 2 gives an overview of all the databases that were used in the development and validation of the method.

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