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ITU J.21:1994

ITU J.21:1994 Performance Characteristics Of 15 Khz-type Sound-programme Circuits - Circuits For High Quality Monophonic And Stereophonic Transmissions Provides design objectives for equipment to be developed for the transmission of high-quality type sound-programmes. It gives the parameters to be envisaged and appropriate quality values. Measuring m

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Table of Contents

1Application
2Interfacecharacteristics
2.1Testconditions
2.2Impedance
2.3Levels
3Overallperformance
3.1Commonparameters
3.2Additionalparametersforstereophonicprogramme
transmission
3.3Additionalrequirementsfordigitalsystems
AnnexA-Themeasurementofnon-linearityintheupper
frequencyrange

Abstract

Provides design objectives for equipment to be developed for the transmission of high-quality type sound-programmes. It gives the parameters to be envisaged and appropriate quality values. Measuring methods for several parameters are specified.

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