Re: Outbound RTP analysis and Jitter

[Jaap Keuter <jaap.keuter () xs4all nl>]

Hi,

Jitter is jitter, whatever the direction.
It’s the (short term) difference between declared packet timing and the actual packet timing.
In the receive direction it can be the result of the transmission path taken.
In the transmit direction it can be the result of the non-real time behaviour of the packet generator.

Thanks,
Jaap


> On 29 Jun 2021, at 11:27, Tristan Leask via Wireshark-users <wireshark-users () wireshark org> wrote:
>
> Hi all,
>
> I have a capture file that has been taken from a server running FreeSwitch.  It shows all the coms between it and 
> everything else, including the SBC, which is what I am interested in.  The capture has been taken at the FreeSwitch 
> server and not the SBC.  If I run an RTP stream analysis, it shows me all the RTP streams that are in the capture.  I 
> am specifically looking at one stream which has the source address as the FreeSwitch Server and the destination as 
> the SBC, so in my view, this is an outbound stream.
>
> This outbound stream has a high max jitter value that is outside acceptable ranges.  As this is an outbound stream, 
> how can this be the case?  I though jitter can only be calculated for inbound streams?  What is jitter on an outbound 
> stream?  Can this high value be ignored and not be the source of poor outbound audio quality?
>
> Thanks
>
> Tristan
> ___________________________________________________________________________
> Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
> Archives:    https://www.wireshark.org/lists/wireshark-users
> Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users
>             mailto:wireshark-users-request () wireshark org?subject=unsubscribe

___________________________________________________________________________
Sent via:    Wireshark-users mailing list <wireshark-users () wireshark org>
Archives:    https://www.wireshark.org/lists/wireshark-users
Unsubscribe: https://www.wireshark.org/mailman/options/wireshark-users
             mailto:wireshark-users-request () wireshark org?subject=unsubscribe