Hi, a bit late on answering some of the questions, but, here we go.<div>On Aculab, all codecs were G711u. The same codec we have on FS:</div><div><br></div><div><div>freeswitch@conference> show channels</div><div>API CALL [show(channels)] output:</div>
<div>uuid,direction,created,created_epoch,name,state,cid_name,cid_num,ip_addr,dest,application,application_data,dialplan,context,read_codec,read_rate,write_codec,write_rate,secure</div><div>c9cafeb8-803a-11de-8ceb-cb8648fd1ccf,inbound,2009-08-03 11:34:44,1249310084,sofia/internal/<a href="mailto:1000@192.168.0.40">1000@192.168.0.40</a>,CS_EXECUTE,Teste Testa,1000,192.168.0.165,3200,conference,3200-192.168.0.40@ultrawideband,XML,default,L16,8000,PCMU,8000,</div>
<div>cc5edb90-803a-11de-8ceb-cb8648fd1ccf,inbound,2009-08-03 11:34:49,1249310089,sofia/internal/<a href="mailto:1000@192.168.0.40">1000@192.168.0.40</a>,CS_EXECUTE,F.G.Testa,1000,192.168.0.249,3200,conference,3200-192.168.0.40@ultrawideband,XML,default,L16,8000,PCMU,8000,</div>
<div><br></div><div>2 total.</div><div><br></div><div>freeswitch@conference> conference list</div><div>API CALL [conference(list)] output:</div><div>Conference 3200-192.168.0.40 (2 members)</div><div>2;sofia/internal/<a href="mailto:1000@192.168.0.40">1000@192.168.0.40</a>;cc5edb90-803a-11de-8ceb-cb8648fd1ccf;F.G.Testa;1000;hear|speak;0;0;300</div>
<div>1;sofia/internal/<a href="mailto:1000@192.168.0.40">1000@192.168.0.40</a>;c9cafeb8-803a-11de-8ceb-cb8648fd1ccf;Teste Testa;1000;hear|speak|talking|floor;0;0;300</div><div><br></div><div>I think this answers some questions from Michael.</div>
<div>A packet dump I don't have right now. </div><div><br></div><div>Fernando G. Testa</div><div><br></div><br><div class="gmail_quote">On Thu, Jul 30, 2009 at 11:13 AM, Steve Underwood <span dir="ltr"><<a href="mailto:steveu@coppice.org">steveu@coppice.org</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im">David Knell wrote:<br>
> On Thu, 2009-07-30 at 09:21 +0800, Steve Underwood wrote:<br>
><br>
>><br>
>> High quality conferencing is a difficult task, and still a research<br>
>> topic. No two conferencing systems perform alike. The interesting thing<br>
>> about this and other reports is that the conferencing in Freeswitch is<br>
>> not very clever right now, yet people are already saying it beats<br>
>> various other offerings, including long time commercial offerings.<br>
>><br>
><br>
> It may well be that a simplistic implementation (noise gate, add them<br>
> all up) is all that's required for dealing with small groups or, more<br>
> generally, groups of any size which have a small number of active<br>
> speakers at any one time: it's predictable and unlikely to introduce<br>
> unpleasant side effects.<br>
><br>
</div>This is one of those situations where when you've experienced something<br>
better you make that your baseline for acceptability. I would consider a<br>
noise gate horribly crude, and VAD as the minimum for acceptable<br>
performance. If you've only used a noise gate you get used to it. If<br>
you're not sufficiently versed in the art you may well think nothing<br>
better is even possible.<br>
<br>
The fact that even the simple scheme, with noise gating, in Freeswitch<br>
is getting high praise, is pretty damning of mature commercial products.<br>
<font color="#888888"><br>
Steve<br>
</font><div><div></div><div class="h5"><br>
<br>
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</div></div></blockquote></div><br><br clear="all"><br>-- <br>Fernando Gregianin Testa<br>Voice Technology Ltda<br>+55 11 35882166<br><br>
</div>