AES 41 : 2009

Foreword
Corrigendum 2000-10-06
0 Introduction
   0.1 Rationale for this standard
   0.2 Conventions used in this standard
   0.3 Patents
1 Scope
2 Normative references
3 Definitions, symbols, and abbreviations
   3.1 Definitions
   3.2 Symbols
   3.3 Abbreviations
4 Information for transparency
5 Method for describing the bit-stream syntax
6 Specification of the audio coder control data bit-stream
   syntax
7 Semantics of the audio coder control data bit-stream syntax
   7.1 Header
   7.2 Recoding_data
   7.3 Syntax for error_check
   7.4 Syntax for ancillary_data
8 Method of signalling the audio coder control data bit-stream
   on the AES 3 interface
9 Sample alignment of audio coder control data with respect
   to decoded-audio signal
Annex A - Use of the audio coder control data in a MPEG-1 Layer II
          or a MPEG-2 LSF Layer II environment
Annex B - Alignment of MPEG-1 Layer II or of MPEG-2 LSF Layer II
          audio coder control data to decoded audio samples
Annex C - Transmission of audio coder control data signal
          associated with MPEG-2 LSF signals

Explains a format for the data to be transmitted to identify a number of popular audio bit-rate reduction techniques. It also explains a mechanism whereby the data derived from the coded signal can be transported with the decoded signal so that the data may be recovered and used to aid a subsequent re-encoding process.