1
Preamble
2 Introduction
3 Approach
4 Normative references
5 Attenuation (overall loudness
rating)
6
Attenuation distortion
6.1 General
6.2 Circuits
6.3 Digital terminals
7 Clipping
7.1 Power level clipping
7.2 Temporal clipping
8 Companders
9
Echo
9.1 General
9.2 Circuits
9.3 Digital terminals
9.4 Private networks
10 Error on the reconstituted frequency
11 Group delay
12 Linear crosstalk
13 Non-linear distortion
13.1 Analogue non-linear distortion
13.2 Quantization distortion
13.3 Distortion from low bit rate
codecs
14 Noise
15 Noise interference
15.1 Single tone or narrow-band noise
interference
15.2 Wideband noise interference
16 Variation of transmission loss with time