Coder Parameters - AudioCodes Mediant 4000 SBC User Manual

User's Manual
Parameter
Answer Detector Sensitivity
configure voip > media ipmedia >
answer-detector-sensitivity
[AnswerDetectorSensitivity]

55.10.2 Coder Parameters

The coder parameters are described in the table below.
Parameter
Silk Tx Inband FEC
configure voip > media settings
> silk-tx-inband-fec
[SilkTxInbandFEC]
Silk Max Average Bit Rate
configure voip > media settings
> silk-max-average-bitrate
[SilkMaxAverageBitRate]
Opus Max Average Bitrate
configure voip > sip-definition
settings > opus-max-avg-
bitrate
[OpusMaxAverageBitRate]
configure voip > media settings
> vbr-coder-header-format
[VBRCoderHeaderFormat]
configure voip > media settings
> vbr-coder-hangover
[VBRCoderHangover]
AMR Payload Format
[AmrOctetAlignedEnable]
configure voip > media settings
> amr-header-format
Version 7.2
Defines the Answer Detector sensitivity.
The range is 0 (most sensitive) to 2 (least sensitive). The
default is 0.
Table 55-35: Coder Parameters
Enables forward error correction (FEC) for the SILK coder.

[0] Disable (default)

[1] Enable
Defines the maximum average bit rate for the SILK coder.
The valid value range is 6,000 to 50,000. The default is 50,000.
The SILK coder is Skype's default audio codec used for Skype-to-
Skype calls.
Defines the maximum average bit rate (in bps) for the Opus coder.
The valid value range is 6000 to 50,000. The default is 50,000.
Determines the format of the RTP header for VBR coders.

[0] = (Default) Payload only (no header, TOC, or m-factor) -
similar to RFC 3558 Header Free format.

[1] = Supports RFC 2658 - 1 byte for interleaving header (always
0), TOC, no m-factor.

[2] = Payload including TOC only, allow m-factor.

[3] = RFC 3558 Interleave/Bundled format.
Defines the required number of silence frames at the beginning of
each silence period when using the VBR coder silence
suppression.
The range is 0 to 255. The default is 1.
Defines the AMR payload format type.

[0] Bandwidth Efficient

[1] Octet Aligned (default)
Note: The AMR payload type can also be configured per Coder
Group (see Configuring Coder Groups on page 375). The Coder
Group configuration overrides the parameter.
Determines the payload format of the AMR header.

[0] = Non-standard multiple frames packing in a single RTP
791
55. Configuration Parameters Reference
Description
Description
Mediant 4000 SBC