Add support for Acoustic Echo Cancellation support for 10.3

[GoogleCodeExporter]

See

  http://groups.google.com/group/bigbluebutton-dev/browse_thread/thread/8d5d6dff85ff33f1

Need to make sure any changes we make work with both Flash 10.x and 10.3.

Original issue reported on code.google.com by ffdixon@gmail.com on 11 Mar 2011 at 9:17

[GoogleCodeExporter]

Original comment by ffdixon@gmail.com on 11 Mar 2011 at 9:17

• Added labels: Milestone-Release0.8

[GoogleCodeExporter]

if this happens it will rock!!!!! Most of problems in our lectures will go 
away!!!

Original comment by ali....@gmail.com on 14 Mar 2011 at 3:57

[GoogleCodeExporter]

Issue 956 has been merged into this issue.

Original comment by ffdixon@gmail.com on 22 Jun 2011 at 1:28

[GoogleCodeExporter]

Echo Cancel works for 10.3 but adds latency and other users hear a muffled 
robotic noise...however, the webcam and deskshare isn't working as we need to 
upgrade to Flex SDK 4.5...

The webcam isn't working but doesn't show any errors when running using Flash 
Player debugger...deskshare throws some null object exceptions but not certain 
they are tied to the Flex 4.5 upgrade

Original comment by ritza...@gmail.com on 28 Jun 2011 at 7:55

[GoogleCodeExporter]

I strongly recommend to mention Acoustic Echo Cancellation in the wiki or the 
docs. Reason: Echo AVOIDING is always better than Echo Cancellation. No matter 
how good the algorithm in Flash might be it cannot beat a session, where there 
is no acoustic echo in the first place. Like when everybody is on headsets.
The often used practice "everybody not talking mutes his mic" is helpful but 
can generate some nasty audio artifacts when a mic is unmuted. I am more than 
happy to explain why, but think most people are interested in these kinds of 
details! ;-) 

P.S. Its called ACOUSTIC Echo Cancellation and not AUTOMATIC.

Original comment by steindlh...@gmail.com on 17 Jul 2011 at 5:42

[GoogleCodeExporter]

Original comment by ffdixon@gmail.com on 17 Jul 2011 at 5:48

• Changed title: Add support for Acoustic Echo Cancellation support for 10.3

[GoogleCodeExporter]

Thanks for your comments.  At the moment we're not sure we'll be able to get 
Acoustic Echo Cancellation into BigBlueButton 0.8 as it's triggering a compiler 
shift from Flex 3.5 to 4.5.  See

  http://groups.google.com/group/bigbluebutton-dev/browse_thread/thread/25b5ba555497d94b#

Original comment by ffdixon@gmail.com on 17 Jul 2011 at 5:51

[GoogleCodeExporter]

https://github.com/bigbluebutton/bigbluebutton/commit/9a88390e118ff02a8cde73db7b
3faf96f88b7c20

Original comment by ritza...@gmail.com on 6 Oct 2011 at 3:42

• Changed state: Fixed