Digigram Software for IQOYA SERV/LINK 88 (Upgrades from 8 Codecs to 16) - Manual (Page 113)

IQOYA SERV/LINK user manual
113
- Unchecked: the default jitter buffer size defined at IP codec instance
level will be used.
Jitter buffer size (ms) Read/Write Visible only if “Use a specific jitter buffer size” is checked.
Size of the jitter buffer to be allocated by the IP codec instance when
the user selects this profile at call time.
Sent stream settings section
Audio encoding format Read/Write Audio encoding format of the stream sent to the remote party.
Forward error correction Read/Write Forward Error Correction (FEC) is a technique used to reduce data
transmission errors on unreliable networks by sending additional
information allowing to correct them.
This parameter allows to select the FEC scheme for the FEC stream
sent to the remote party. Possible values are:
● No FEC stream
● +50% bandwidth, recovery 2, 1 stream (audio)
● +100% bandwidth, recovery 3, 2 streams (audio + FEC)
● +100% bandwidth, recovery 4, 2 streams (audio + FEC)
● +50% bandwidth, recovery 1/2, 2 streams (audio + FEC)
● +33% bandwidth, recovery 1/3, 2 streams (audio + FEC)
● +25% bandwidth, recovery 1/4, 2 streams (audio + FEC)
● +20% bandwidth, recovery 1/5, 2 streams (audio + FEC)
● +10% bandwidth, recovery 1/10, 2 streams (audio + FEC)
'recovery N' means that up to N consecutive lost IP packets can be
reconstructed thanks to the FEC scheme, 'recovery 1/N' means one
lost IP packet out of N consecutive packets can be reconstructed
thanks to the FEC scheme.
Advanced parameters:
Audio stream payload type Read/Write Payload type of the audio stream sent to the remote party. It’s an
integer between 0 and 127.
Packet size (ms) Read/Write Defines the size in ms of the audio packets sent to the remote party or
0 to use the default value.
The packet size is the amount of audio data to be put in the network
packets, expressed in ms.
For PCM, G711, G722, and aptX formats: The entered value is
adjusted to the nearest greater or equal multiple of the processing
granularity. It is the amount of audio samples processed by the audio
engine at each cycle.
For MPEG formats: The entered value is adjusted to the nearest
greater or equal multiple of the MPEG frame.
For AAC formats: The entered value is adjusted to the nearest greater
or equal multiple of the AAC frame.
FEC stream payload type Read/Write Payload type of the FEC stream sent to the remote party. It’s an
integer between 0 and 127.