We tested AEC out-of-the-box. We just installed and ran a meeting in OM2.1- 
Litle or no echo.  We then, using the exact same configuration, logged in to an 
OM2.0 server and ran a meeting. We experienced substantial echo. We were both 
running a PC with Flash echo cancellation on but no hardware echo cancelation.

Also for OM2.1 Where do I set the buffer lenghth?  Are there any other 
parameters/options I  should know about?



Joseph Karwat | CEO | 415-462-0263 | JellVideo | www.jellnet.com |  
JELL NETWORKS, INC. 
Enterprise Video Collaboration Solutions

Click Here to Register for your JellVideo Collaboration Account



-----Original Message-----
From: Alexei Fedotov [mailto:[email protected]] 
Sent: Monday, April 22, 2013 12:49 PM
To: [email protected]
Subject: RE: AEC in the new release

Joseph, which devices show improvement? Which buffer length did you use?

I like the suggestion - Maxim, how is it possible to configure AEC in realtime?
On Apr 22, 2013 11:30 PM, "Joseph Karwat" <[email protected]> wrote:

> We have a test OM2.1 server installed at AWS running Unbuntu 12.04.
>
> We tested AEC this morning for the first time and it did seem to make 
> the audio work very well.  Little if no echo.  We still need to test 
> under a wide range of scenarios, but we are encouraged by the 
> performance this morning.
>
> If you do make it a configurable setting. It should be an option when 
> setting up the room or allow the individual user to enable/disabe AEC 
> when in a conference room.
>
> Making it a system-wide configuration option will delay testing and 
> adoption.
>
> We will be conducting further testing of AEC over the next few days 
> and will report back with our findings.  Anyone wishing to participate 
> in our AEC testing is encouraged to contact me.
>
>
> Joseph Karwat |415-462-0263 | JellVideo | www.jellnet.com | JELL 
> NETWORKS, INC.
> Enterprise Video Collaboration Solutions
>
> Click Here to Register for your JellVideo Collaboration Account
>
>
> -----Original Message-----
> From: Alexei Fedotov [mailto:[email protected]]
> Sent: Monday, April 22, 2013 12:49 AM
> To: dev; [email protected]
> Subject: Re: AEC in the new release
>
> There are no answers. My point here is that we can be 100% sure that 
> today AEC does not work as expected, and provides distinctive and high 
> quality echo in 100% of situations when users use separate dynamic and 
> microphone systems.
>
> The new thing is AEC mechanism sometimes meddles with hardware echo 
> cancellation support providing temporary sound outages. It also 
> provides visible de-synchronization between sound and video channels.
>
> If someone has a different experience, please, speak up.
>
> So I have two ideas to speak of. 1. Disable AEC in openmeetings 
> releases by default. It takes a simple configuration change to enable 
> it. 2. Later understand when AEC really works, and fix it.
>
> Folks, please again let me know if you disagree and have beneficial 
> AEC experience.
> --
> With best regards / с наилучшими пожеланиями, Alexei Fedotov / Алексей 
> Федотов, http://dataved.ru/
> +7 916 562 8095
>
>
> On Thu, Apr 18, 2013 at 11:11 PM, Alexei Fedotov 
> <[email protected]>
> wrote:
> > Hello guys,
> > How AEC (acoustic echo cancellation) works for you in the new release?
> > Can anyone share usage experience?
> >
> > --
> > With best regards / с наилучшими пожеланиями, Alexei Fedotov / 
> > Алексей Федотов, http://dataved.ru/
> > +7 916 562 8095
>
>

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