3 Definitions and abbreviations

26.1913GPPAdaptive Multi-Rate - Wideband (AMR-WB) speech codecError concealment of erroneous or lost framesRelease 17Speech codec speech processing functionsTS

3.1 Definitions

For the purposes of this document, the following definition applies:

N-point median operation: Consists of sorting the N elements belonging to the set for which the median operation is to be performed in an ascending order according to their values, and selecting the (int (N/2) + 1) -th largest value of the sorted set as the median value.

Further definitions of terms used in this document can be found in the references.

3.2 Abbreviations

For the purposes of this document, the following abbreviations apply:

AMR-WB Adaptive Multi Rate – WideBand

AN Access Network

BFI Bad Frame Indication from AN

BSI_netw Bad Sub-block Indication obtained from AN interface CRC checks

prevBFI Bad Frame Indication of previous frame

RX Receive

SCR Source Controlled Rate (operation)

SID Silence Descriptor frame (Background noise)

CRC Cyclic Redundancy Check

ECU Error Concealment Unit

BFH Bad Frame Handling

medianN N-point median operation