[Freeswitch-users] conferencing

[Avi Marcus]

If you mute most of the callers, that would limit the audio that would need
to be processed.
-Avi

On Tue, Jan 4, 2011 at 12:45 PM, Sam <u2nsam at gmail.com> wrote:

> calls would not be TDM it would be ip-ip calls.
> 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.
>
> Regds
> Sam
>
>
> On Tue, Jan 4, 2011 at 3:53 PM, Steven Ayre <steveayre at gmail.com> wrote:
>
>> That will still involve transcoding. FS must combine all speaking
>> channels into a single stream that can be sent to the conference
>> members. That can't be done in a compressed audio format, so it must
>> convert G711 to L16 for each speaking member, combine those pieces of
>> audio, then convert L16 back to G711 to send to the conference
>> members. Additionally, since the conference members are not
>> necessarily all using the same codec that last transcoding step will
>> occur once for each member, not just once for the conference. Your
>> best bet is to use a codec that uses as little CPU for transcoding as
>> possible - in software I'm not sure which is best there (G711 is
>> simple so possibly a good choice), in hardware Sangoma D100/D500 would
>> almost all the processing off the CPU.
>>
>> -Steve
>>
>>
>> On 4 January 2011 10:15, Sam <u2nsam at gmail.com> wrote:
>> > Ok if i remove transcoding out of the picture and all conf are running
>> on
>> > g711, what rest would matters ?
>> >
>> >
>> > Regds
>> > Sam
>> >
>> >
>> > On Tue, Jan 4, 2011 at 2:56 PM, Avi Marcus <Avi at amarcus.com> wrote:
>> >>
>> >> It's the transcoding that will kill you. If that's truly needed, you
>> may
>> >> want to look into multiple machines handling transcoding and then
>> bridging
>> >> into the conference, or the new transcoding hardware from sangoma.
>> >> -Avi
>> >> On Tue, Jan 4, 2011 at 9:55 AM, Sam <u2nsam at gmail.com> wrote:
>> >>>
>> >>> hello,
>> >>>
>> >>> how to increase the scalability / performance of the conference .
>> >>>
>> >>> Are there any parameters to be observed that could do a trick ?
>> >>>
>> >>> The scenario would be multiple conferencing bridges and multiple
>> codecs
>> >>> involved.
>> >>>
>> >>> Is is possible to multiple threading of profiles for conferences so
>> that
>> >>> it gets the scalability ?
>> >>>
>> >>> Regards
>> >>> Sam
>> >>>
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