2  References

3  Definitions, abbreviations and mathematical expressions  Word‑p. 16

3.1  Definitions

3.2  Abbreviations  Word‑p. 17

3.3  Mathematical Expressions  Word‑p. 18

4  General description of the coder  Word‑p. 19

4.1  Introduction

4.2  Input/output sampling rate

4.3  Codec delay  Word‑p. 20

4.4  Coder overview

4.4.1  Encoder overview

4.4.1.1  Linear Prediction Based Operation  Word‑p. 21

4.4.1.2  Frequency Domain Operation  Word‑p. 22

4.4.1.3  Inactive Signal coding

4.4.1.4  Source Controlled VBR Coding  Word‑p. 23

4.4.2  Decoder overview

4.4.2.1  Parametric Signal Representation Decoding (Bandwidth Extension)

4.4.2.2  Frame loss concealment

4.4.3  DTX/CNG operation

4.4.3.1  Inactive Signal coding  Word‑p. 24

4.4.4  AMR-WB-interoperable option

4.4.5  Channel-Aware Mode

4.5  Organization of the rest of the Technical Standard

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