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TRANSMISSION SYSTEMS FOR AUDIO AND/OR VIDEO AND RELATED SIGNALS USING INFRA-RED RADIATION - PART 7: DIGITAL AUDIO SIGNALS FOR CONFERENCE AND SIMILAR APPLICATIONS
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Available format(s): Hardcopy, PDF
Language(s): English
Published date: 01-01-2003
Publisher: National Standards Authority of Ireland
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.Only cited Standards give presumption of conformance to New Approach Directives/Regulations.Dates of withdrawal of national standards are available from NSAI.
FOREWORD1 Scope2 Normative references3 Terms and definitions4 Abbreviations5 Explanation of terms and general information6 System considerations7 Basic system concept8 Protocol 8.1 System context 8.2 Physical layer 8.3 Data link layer 8.4 Detailed overview of audio frame structures9 Data protocol 9.1 General 9.2 Data messages 9.3 Data packet structureAnnex A (normative) Definition of prototype filterAnnex B (informative) Example of [Delta]/f diagram in the user area conferenceAnnex C (informative) Provision for future developmentsBibliography
Provides the characteristics of a digital multiple channel, multiple carrier audio transmission system as an extension to conference interpretation or similar systems using the frequency ranges 45 kHz to 1 MHz and 2 MHz to 6 MHz.
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