Modifications for webinar use

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ArtActivator.com

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May 17, 2013, 3:21:28 AM5/17/13
to BigBlueButton-dev
Hello all!
First of all, thanks for doing so good and exclusive product, that
helps in education. You guys doing good things.

I want to use BBB for webinars, for about 300-700+ people.
Of course only one-two presenters will stream audio and video, all
others will just listen.

I have installed 0.81dev version on Lucid.

So my qustions are:
1. How to temporarily turn off chat? Like after webinar is done, you
turning on the chat and say: now, you can ask questions etc. Because
when it's 700+ people, it's very needed feature.

2. How to kick user? In new version with users unified window, I tried
all things in config, added allowKickUser as in Listeners module, and
nothing helped. I found some issues about that, but found only
designer's screenshots, how it will be. This is needed because most of
webinars will be free, and if someone will spam in chat (that can't be
turned off for a while), it is very bad...

3. How to disable joining with microphone at all? I put
autoJoin=false, entered as moderator, put "Mute all except presenter",
"Lower all hands", but as user I was able to unmute myself again. It
is also very bad, because if someone of 700+ people will unmute....

I am not asking to do all the things for me, I am also programmer (but
not flash/actionscript and not java), maybe you will point me in right
direction how to do these things. I am C/C++/PHP/JS/Python/Bash
programmer... If the things I need to modify is ActionScript, I will
not able to do it, also I use Linux as my desktop...

I read many articles about bbb, and many people says, that it is
mainly for education classes. But in new version I found Webinar
layout, and I think if these features will be added, it will fully fit
webinar needs.

Thank you very much!

P.S. also I think it is possible to use CDN for streaming? I just need
to find info for red5 and freeswitch in google?

HostBBB.com

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May 17, 2013, 5:50:51 AM5/17/13
to BigBlueButton-dev
Art

There are some neat new technology pieces in .81 that can enable a
project like this, I've done some work in the past with influxis/
edgecast putblishing into their CDNS for larger audiences.

The new javascript bridge/dynamic configs in client gives you control
over users layout to solve some of the challenges noted aboce, and
some work in streaming view only html5 clients with icecast/gstreamer
is in the labs projects.

I would suggest looking at the demo examples that show these features.
You can control the client with javascript, and don't need the flash
experience.

Assuming you might have some commercial interest in this to stream 700
users, the cost of the CDN access alone will set you back to host HD
720p streams.

Sounds like a neat project, keep us posted.

Regards,
Stephen
hostbbb.com

On May 17, 3:21 am, "ArtActivator.com" <sibvaleo4467...@gmail.com>
wrote:

Fred Dixon

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May 17, 2013, 9:21:37 AM5/17/13
to BigBlueButton-dev
Hi Art,

Thanks for the feedback.  Answers are in-line.

I want to use BBB for webinars, for about 300-700+ people.

Just to calibrate expectation, we recommend using BigBlueButton in sessions for 25 users less.  See


We realize that as we continue to improve BigBlueButton, others will want to use it for webinar-type applications.  We can see the value of this for MOOCs, but for the moment our focus is on small to medium-sized group collaborations.  

While MOOCs are getting all the press today, I think they are quickly hitting the peak of inflated expectations, see


In contract, the market for small to medium-sized group collaborations is a *much* larger market, and is the one for which we design, develop, and test BigBlueButton.


> 1. How to temporarily turn off chat? 

There isn't a capability in BigBlueButton yet to restrict chat input for a user, but it's a good suggestion.  Added an enhancement request




2. How to kick user? 

That capability is in place. Add the following parameter to the UsersModule in config.xml

                <module name="UsersModule" url="..."
                        uri="..."
                        allowKickUser="false"
                />

In 0.81-dev the config.xml is cached by the BigBlueButton. This means, if your browser is in an active meeting, then making a change to the config.xml and refreshing the browser will not load the new config.xml.  To see the results of editing the config.xml, create a new meeting and join it, or restart the BigBlueButton server.


3. How to disable joining with microphone at all?

This capability is not in the client.  Opened an enhancement request to add a property to config.xml to disable microphone.



is also very bad, because if someone of 700+ people will unmute....

Again, just to calibrate your expectations, if you are looking to support such numbers of users, we recommend you seek out other solutions.  

BigBlueButton is not a webinar product.  In contrast to a webinar product, BigBlueButton enables you to have 10 people all sharing webcams and interacting in real-time, which is a *much* different architecture.  

For information on how we prioritize the features for each release, see



Regards,... Fred




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