I've ran into this before, and it ended up being feedback from the handsets on both sides of the call. It doesn't really bother us now that we know what it is. <div><br></div><div>-BDF<br><br><div class="gmail_quote">
On Thu, Sep 20, 2012 at 5:24 PM, Michael Collins <span dir="ltr"><<a href="mailto:msc@freeswitch.org" target="_blank">msc@freeswitch.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I recommend that you get a pcap of such a conversation and analyze it in Wireshark. See if the lag shows up in the analysis or not. That will at least give you a clue as to where the issue is. (Compare the recording on disk with the playback in Wireshark. Note: you'll need the call to be g.711 for this to work.)<br>
<br>-MC<br><br><div class="gmail_quote"><div><div class="h5">On Thu, Sep 20, 2012 at 2:03 PM, Tóth Róbert <span dir="ltr"><<a href="mailto:trob@freemail.hu" target="_blank">trob@freemail.hu</a>></span> wrote:<br></div>
</div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5">
<div bgcolor="#FFFFFF" text="#000000">
<pre>No, the callers do not notice anything, they hear each other without problem.
One party is on the local network where FS is, and other is outside.
But as they do not notice this problem, i think the problem is at the recording. I think.
><i> </i>This is more likely an issue with the media streams than the recording
><i> </i>itself. Do the callers notice anything? Is one or both callers outside the
><i> </i>local network where the FS server reside? Just looking for places where
><i> </i>interesting/weird things might happen.
><i> </i>
><i> </i>-MC
><i> </i>
><i> </i>On Thu, Sep 20, 2012 at 6:40 AM, Tóth Róbert <<a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">trob at freemail.hu</a>> wrote:
><i> </i>
><i> </i>><i> Hi
</i>><i> </i>><i>
</i>><i> </i>><i> Why left and right channels' voice shifted from each other in the recorded
</i>><i> </i>><i> mp3?
</i>><i> </i>><i>
</i>><i> </i>><i> I record the sessions' voice thios way:
</i>> ><i> <action application="set" data="execute_on_answer=record_session
</i>> ><i> $${base_dir}/Record/${strftime(%Y%m%d-%H%M%S)}.mp3"/>
</i>> ><i> When i listen back the mp3, at begining the two chennels are synchonized,
</i>> ><i> but after some minutes there will be a shifting between the channels.
</i>> ><i>
</i>> ><i> Why?
</i>> ><i>
</i>> ><i> thanks,
</i>> ><i> Robert</i></pre>
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