RECOMMENDATION ITU-R BS.1548 - User requirements for audio coding systems for digital broadcasting
ANNEX 1 - Requirements for contribution and distribution
1 Service requirements
    1.1 Channel configurations
    1.2 Flexible allocation of channels
    1.3 Ancillary data
2 Performance requirements
    2.1 Audio quality
    2.3 Error resilience
    2.4 Recovery time
3 Functional and operational requirements
    3.1 Bit rate and coding scheme
    3.2 Composite coding
ANNEX 2
    Requirements for emission
1 Service requirements
    1.1 Channel configurations
    1.2 Audio services
    1.3 Flexible allocation of channels
    1.4 Ancillary data
2 Performance requirements
    2.1 Audio quality
    2.1.2 Stereo image quality
    2.2 Coding delay
    2.3 Error resilience
    2.4 Recovery time
3 Functional and operational requirements
    3.1 Compatibility
    3.2 Bit rate
    3.3 Decoder complexity
    Bibliography