Wireshark · Ethereal-users: Re: [Ethereal-users] RTP and jitter

[Jaap Keuter <jaap.keuter@xxxxxxxxx>]

Hi,

Jitter is the DEVIATION of the expected timestamp. You want those to be
low, actually zero. When that's not the case software has to compensate
for that. If the jitter becomes to high speech degradation may follow.
All is depending of the robustness of the jitter buffer implementation.

Thanx,
Jaap


On Thu, 6 Apr 2006, Michael Mendoza wrote:

> I use ethereal for analysis of VoIP and RTP traffic, but some times I
> see than the jitter is too low,about 0.1   0.25 ms, this is  for
> almost every packet  but there are some than have 4 ms 16 ms  but only
> a few, is it normal??  but the delta or delay is very stable almost
> all the packets are on 20.17 ms, 20.5 ms, 20.52 ms...But in the other
> PC the jitter of almost every packet is around 20 ms but the delta is
> not constant, somtimes 20 ms , other 40 ms...
>
> Is normal that?
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