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