CONTENTS

Policy on Intellectual Property Right (IPR)
 1 Service requirements
        1.1 Channel configurations
        1.2 Flexible allocation of channels
        1.3 Ancillary data
 2 Performance requirements
        2.1 Audio quality
                  2.1.1 Basic audio quality
                  2.1.2 Quantization resolution
                  2.1.3 Sampling frequency
                  2.1.4 Bandwidth
                  2.1.5 Emphasis
                  2.1.6 Tandem capability
                  2.1.7 Post-processing capability
        2.2 Coding delay
        2.3 Error resilience
        2.4 Recovery time
 3 Functional and operational requirements
        3.1 Bit rate and coding scheme
        3.2 Composite coding
 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
                  2.1.1 Basic audio quality
                  2.1.2 Stereo image quality
                  2.1.3 Quantization resolution
                  2.1.4 Sampling frequency
                  2.1.5 Bandwidth
                  2.1.6 Emphasis
                  2.1.7 Post-processing capability
        2.2 Coding delay
        2.3 Error resilience
        2.4 Recovery time
 3 Functional and operational requirements for mutichannel systems
        3.1 Compatibility with mono/stereo systems
                  3.1.1 Downward compatibility (Recommendation ITU‑R BS.775)
                  3.1.2 Backward compatibility
Simulcast method
Matrixing method
                  3.1.3 Forward compatibility
        3.2 Bit rate
        3.3 Decoder complexity