1 General
1.1 Definition of acoustic echo controllers
1.2 Applicability of the Recommendation
1.3 Objective of the Recommendation
1.4 Relevant Recommendations
2
General definitions
2.1 Audio terminals
2.2 Interfaces
2.3 Processing unit
2.4 Electroacoustic transducers and attached circuits
3
Definitions relating to acoustic echo controllers
3.2 Items relevant to speech performance of acoustic echo
controllers
4
Transmission specifications
4.1 Scope
4.2 Application specifics
4.3 Measurements
4.4 Bandwidth
4.5 Attenuation distortion
4.6 Delay
4.7 Delay distortion
4.8 Non-linear distortion
4.9 Noise emitted by the AEC processing unit on the send side
4.10 Acoustic noise produced by the AEC on the receive side
5
Acoustic echo control specifications
5.1 Scope
5.2 Measurement conditions
5.3 Correspondence between performance values and transmission
delays
5.4 Specifications and verification tests
6
Specifications for interworking with the network
6.1 Scope
6.2 Interworking with speech codecs
6.3 Interworking with network echo cancellers
6.4 DCME and PCME interactions
6.5 Interworking between a wide-band terminal and other types of
terminals through the network