What kind of solution would be better for switching codecs, AEC, EM and echo suppression: using config.xml or "Configuration" in the "Administration" menu?
2013/4/23 Joseph Karwat <[email protected]> > IMHO. When something does not work well users generally ask for help from > their service provider. In our shop our staff explains AEC issues to end > users and works with them to resolve the issue. Having AEC as an easy to > enable/disable user option, is very helpful in providing the type of end > user support that will enable widespread adoption of OM. > > I'd be pleased to work with the group to formally test AEC and resolve this > issue. > > 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: [email protected] [mailto:[email protected]] > Sent: Tuesday, April 23, 2013 1:53 AM > To: dev > Subject: Re: AEC in the new release > > IMHO having yet another checkbox where the user can decide to enable or > disable AEC can be only an additional thing on top of a general system wide > configuration. > > The problem with this is for example that the average user does not even > know what AEC means. > Or what is the difference between hardware echo cancellation and software > echo cancellation ?! > So what would be the benefit for him in having a checkbox tagged "enabled > AEC" ? > > One of the concerns people have against OpenMeetings is its complexity. > They just want to conference and not bother around with a lot of options. > > I would also not disable the AEC feature by default as long as there is no > concrete use-case where AEC (or enhancedMicro mode) leads to an issue. > > Same for h264. There was a discussion that included h264 a couple of weeks > ago: > http://markmail.org/message/fctg6eo5qf5hhcaa > > The consens was: > - The amount of CPU that our clients needed more was not measurable. > - There is no concrete use case where enabling or disabling h264 would > improve anything I agree that having a config for the Video codec, same as > the Microphone Mode, would be nice. > But changing any defaults now back and forth without concrete use cases and > some kind of test plan does not make a lot of sense to me. > > So what I would propose is: > - Make Microphone and VideoCodec configurable and documentate this > - Set up a concrete test plan and communicate that through our mailing > lists. > Based on the feedback we might then discuss changing some defaults. > > Sebastian > > > > > > > 2013/4/23 Maxim Solodovnik <[email protected]> > > > My previous comment was regarding video codec Auto selecting h264 > > based on SIP setting is not a good idea IMHO > > > > > > On Tue, Apr 23, 2013 at 3:17 PM, Artyom Horuzhenko <[email protected] > > >wrote: > > > > > Usually (for example, in Linphone) echo cancellation option is > > > available for every user. In my opinion it would be better to allow > > > users to decide use echo cancellation or not because its efficiency > depends on hardware. > > > > > > > > > 2013/4/23 Maxim Solodovnik <[email protected]> > > > > > > > Maybe it is better to make it configurable somehow? config.xml is > > > > good candidate IMHO > > > > > > > > > > > > On Tue, Apr 23, 2013 at 2:56 PM, Artyom Horuzhenko > > > > <[email protected] > > > > >wrote: > > > > > > > > > Hello, > > > > > > > > > > I suppose using h264 would be necessary only in SIP rooms, for > > > > > all > > > other > > > > > rooms - codec which used before (h263?). It avoids any > > > > > suspections > > > about > > > > > h264 issues and increses performance. I'm also going to > > > > > implement > > > > switching > > > > > microphone mode in the audio/video test dialog. Is there anybody > > > > > who disagree with this idea? > > > > > > > > > > > > > > > 2013/4/23 Alexei Fedotov <[email protected]> > > > > > > > > > > > That would be great! > > > > > > On Apr 23, 2013 5:36 AM, "Maxim Solodovnik" > > > > > > <[email protected]> > > > > > wrote: > > > > > > > > > > > > > @Alexei this definitely can be done in realtime, BUT ... :) > > > > > > > > > > > > > > The setting affects Working microphone so it is impossible > > > > > > > to > > > ON/OFF > > > > it > > > > > > > while speaking :( > > > > > > > The only option I can see is to add dropdown control to > > > > testSetupDialog > > > > > > > (the one with choose camera and test recording). So we can > > > > > > > have > > > > > something > > > > > > > like: > > > > > > > > > > > > > > 1) default system setting (can be moved to > > > > > > > Admin->configuration > > to > > > > > avoid > > > > > > > rewriting it after each upgrade) > > > > > > > 2) per user setting stored in LocalData (like rememberLogin > > default > > > > > > cam/mic > > > > > > > etc.) > > > > > > > > > > > > > > using above scheme user can change the setting while > > > > > > > entering the > > > > room > > > > > or > > > > > > > "re-sync" audio/video > > > > > > > > > > > > > > What do you think? > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Tue, Apr 23, 2013 at 3:24 AM, Joseph Karwat < > > > [email protected]> > > > > > > > wrote: > > > > > > > > > > > > > > > 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 > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > > > WBR > > > > > > > Maxim aka solomax > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > WBR > > > > Maxim aka solomax > > > > > > > > > > > > > > > -- > > WBR > > Maxim aka solomax > > > > > > -- > Sebastian Wagner > https://twitter.com/#!/dead_lock > http://www.webbase-design.de > http://www.wagner-sebastian.com > [email protected] > >
