<div dir="ltr">If you mute most of the callers, that would limit the audio that would need to be processed.<div>-Avi<br><br><div class="gmail_quote">On Tue, Jan 4, 2011 at 12:45 PM, Sam <span dir="ltr">&lt;<a href="mailto:u2nsam@gmail.com">u2nsam@gmail.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">calls would not be TDM it would be ip-ip calls.<br>Ok G711 uses less CPU than other codecs,how can i utilized multiple threading/profiles or any other options to scale ? as it would be an incoming call always on FS.<br>

<br>
Regds<br><font color="#888888">Sam</font><div><div></div><div class="h5"><br><br><div class="gmail_quote">On Tue, Jan 4, 2011 at 3:53 PM, Steven Ayre <span dir="ltr">&lt;<a href="mailto:steveayre@gmail.com" target="_blank">steveayre@gmail.com</a>&gt;</span> wrote:<br>

<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
That will still involve transcoding. FS must combine all speaking<br>
channels into a single stream that can be sent to the conference<br>
members. That can&#39;t be done in a compressed audio format, so it must<br>
convert G711 to L16 for each speaking member, combine those pieces of<br>
audio, then convert L16 back to G711 to send to the conference<br>
members. Additionally, since the conference members are not<br>
necessarily all using the same codec that last transcoding step will<br>
occur once for each member, not just once for the conference. Your<br>
best bet is to use a codec that uses as little CPU for transcoding as<br>
possible - in software I&#39;m not sure which is best there (G711 is<br>
simple so possibly a good choice), in hardware Sangoma D100/D500 would<br>
almost all the processing off the CPU.<br>
<br>
-Steve<br>
<div><div></div><div><br>
<br>
On 4 January 2011 10:15, Sam &lt;<a href="mailto:u2nsam@gmail.com" target="_blank">u2nsam@gmail.com</a>&gt; wrote:<br>
&gt; Ok if i remove transcoding out of the picture and all conf are running on<br>
&gt; g711, what rest would matters ?<br>
&gt;<br>
&gt;<br>
&gt; Regds<br>
&gt; Sam<br>
&gt;<br>
&gt;<br>
&gt; On Tue, Jan 4, 2011 at 2:56 PM, Avi Marcus &lt;<a href="mailto:Avi@amarcus.com" target="_blank">Avi@amarcus.com</a>&gt; wrote:<br>
&gt;&gt;<br>
&gt;&gt; It&#39;s the transcoding that will kill you. If that&#39;s truly needed, you may<br>
&gt;&gt; want to look into multiple machines handling transcoding and then bridging<br>
&gt;&gt; into the conference, or the new transcoding hardware from sangoma.<br>
&gt;&gt; -Avi<br>
&gt;&gt; On Tue, Jan 4, 2011 at 9:55 AM, Sam &lt;<a href="mailto:u2nsam@gmail.com" target="_blank">u2nsam@gmail.com</a>&gt; wrote:<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; hello,<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; how to increase the scalability / performance of the conference .<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; Are there any parameters to be observed that could do a trick ?<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; The scenario would be multiple conferencing bridges and multiple codecs<br>
&gt;&gt;&gt; involved.<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; Is is possible to multiple threading of profiles for conferences so that<br>
&gt;&gt;&gt; it gets the scalability ?<br>
&gt;&gt;&gt;<br>
&gt;&gt;&gt; Regards<br>
&gt;&gt;&gt; Sam<br>
&gt;&gt;&gt;<br>
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