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ITU P.830:1996

ITU P.830:1996 Subjective Performance Assessment Of Telephone-band And Wideband Digital Codecs Defines a specific testing method for evaluating digital processes. It contains advice on how to assess the performance of digital codecs and must be read in conjunction with Recommendation P.80.

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Table of Contents

1Scope
2References
3Definitions
4Abbreviations
5Conventions
6Summaryofsubjectivetestingprocedures
7Sourcerecordings
7.1Recordingsystem
7.2Speechsamples
8Selectionofexperimentparameters
8.1Codecconditions
8.2Referenceconditions
9Experimentdesign
10Listeningtestprocedure
10.1Receivingsystem
10.2Opinionscales
10.3Electricalnoise
11Analysisofresults
AnnexA-ComparisonofdifferentSNRdefinitions
AnnexB-Setsofparameterstodeterminecodecperformance
B.1Narrow-bandsystems(300-3400Hz)
B.2Widebandsystems(100-7000Hz)
AnnexC-PCMcodeccorrespondingtooneqdu
C.1Commonanalogueinterface
C.2Digitalinterface
C.3Analogueinterface
AnnexD-ModifiedIRSsendandreceivecharacteristics
Bibliography

Abstract

Defines a specific testing method for evaluating digital processes. It contains advice on how to assess the performance of digital codecs and must be read in conjunction with Recommendation P.80.

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