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BS IEC 61937-3:2017:2019 Edition

$102.76

Digital audio. Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 – Non-linear PCM bitstreams according to the AC-3 and enhanced AC-3 formats

Published By Publication Date Number of Pages
BSI 2019 16
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IEC 61937-3:2017 is available as IEC 61937-3:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61937-3:2017 describes the method used to convey non-linear PCM bitstreams encoded according to the AC-3 and enhanced AC-3 formats. This third edition of IEC 61937-3 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) removal of support for enhanced AC-3 bitstreams with a sampling frequency of 32 kHz; b) updates to normative and informative references; c) clarification of pause data-burst usage for enhanced AC-3 bitstreams.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 CONTENTS
5 FOREWORD
7 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
8 3.7 Abbreviated terms
4 Mapping of the audio bitstream on to IEC 61937-1
4.1 General
4.2 AC-3 and enhanced AC-3 burst-info
Tables
Table 1 – Fields of burst-info
9 5 Format of AC-3 and enhanced AC-3 data-bursts
5.1 General
5.2 Pause data-burst
5.3 Audio data-bursts
5.3.1 AC-3 data
Figures
Figure 1 – AC-3 data-burst, with reference point R
Table 2 – Repetition period of the pause data-bursts
10 5.3.2 Latency of AC-3 decoding
Figure 2 – Latency of AC-3 decoding
Table 3 – Data-type-dependent information when data-type bits 0-4 = 1
11 5.3.3 Enhanced AC-3 data
12 Figure 3 – Enhanced AC-3 data-burst
Table 4 – Data-type-dependent information when data-type bits 0-4 = 21 and data-type bits 5-6 = 0
13 5.3.4 Latency of the enhanced AC-3 decoder
Figure 4 – Latency of enhanced AC-3 decoding
Table 5 – Maximum enhanced AC-3 burst-payload size and bitstream data rate per sampling frequency and IEC 60958 frame rate
15 Bibliography
BS IEC 61937-3:2017
$102.76