On Fri, Jan 11, 2019, 17:14 Steven Ayre <steveayre@gmail.com wrote:
Conferences will always require transcoding.

Yep, kind of.

IIRC.
Audio from the speaker(s) to a conference will always be transformed into the common internal format (signed linear) to be mixed togheter (if more than one speaker surpass the audio energy threshold), and then the result of the speakers mix will be sent to each listening participant, transcoded to each participant own codec.
So, if all participants have same codec, only one linear to codec is done and the result is distributed.

Also, not sure if with one only speaker over the energy threshold, and listeners with same codec as speaker (eg, no mix needed), maybe the speaker is directly distributed without even transcoding to linear? 
Can't remember...

Anyway, transcoding audio il not so heavy.

Transcoding video, or just mixing video, is very heavy. If you want video conf without load, use pass through mode instead of mux. This way (conference passthroufh mode, as opposed to.mux mode) it will just distribute the "video floor" video stream (eg, the speaker stream) to all participants, without noticeable load.

-giovanni


On Wed, 9 Jan 2019 at 19:03, Giovanni Maruzzelli <gmaruzz@gmail.com> wrote:
On Wed, Jan 9, 2019 at 1:46 PM Ahmed Chohan <ahmedmunir007@gmail.com> wrote:
Hi
I'm currently exploring varity of products in market that support conference service, I would like to how many participants can join each conference in freeswitch?


FreeSWITCH is open source, so you can connect how many calls into a conference, no need for licenses.

As per cpu load, it depends on what are you doing. Eg, will you transcode or not? Audio or video too?

No transcoding is lightest.

If you need professional help/evaluation for your use case, look at the bottom of the mail, there is the mail address.

-giovanni



 
Please advise.

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Ahmed Munir Chohan

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Sincerely,

Giovanni Maruzzelli
OpenTelecom.IT
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