Sounds like good news! Dan
On Mon, Nov 19, 2012 at 6:02 PM, Joseph Karwat <[email protected]> wrote: > Sebastian:**** > > ** ** > > I tested the app for a few minutes with George and still need to test a > bit more to reproduce his findings, but I would echo his desire to put this > in production. It would be easier for all of us to test if you could > simply include the AEC code on the OM Demo (or another public) server for > all to formally test. Alternatively, If you can give me instructions on > how to put this into a working OM instance, I’d be happy to add the code to > our test system and then test with a live OM system.**** > > ** ** > > Thanks so much for working on this.**** > > Joseph Karwat | 415-462-0263 | JellVideo <http://www.jellvideo.com/> | > www.jellnet.com | [image: 3psquare93x77] **** > > *Jell Networks, Inc**. * > > Enterprise Video Collaboration Solutions**** > > ** ** > > ** ** > > ** ** > > *From:* George Kirkham [mailto:[email protected]] > *Sent:* Monday, November 19, 2012 2:00 PM > *To:* [email protected]; Joseph Karwat > *Cc:* [email protected]; > [email protected] > *Subject:* SUCCESS - Testing application to compare Acoustic Echo > Cancellation (AEC) in SWF11 in OpenMeetings**** > > ** ** > > Hi Sebastian,**** > > ** ** > > I have managed to set up a test environment where I can use the > “test-setup.lzx.swf11.swf” application and verify that selecting “* > useEchoSuppression*” and “*use Enhanced Microphone*” options *really does > make a great difference in reducing echo.* > > ** ** > > Yes, this works just great ! How difficult is it to introduce into the > current OpenMeetings build? It would be worthwhile if you could.**** > > ** ** > > I have one laptop in particular that is good for causing echo, as it has > no internal hardware echo cancellation features.**** > > ** ** > > After setting up an OpenMeetings test server, I then used this laptop to > run test-setup.lzx.swf11.swf and below are the steps that I used to verify > the effectiveness of this echo test;**** > > ** ** > > **1) ***Test 1* - Open Internet Explorer and connect to > test-setup.lzx.swf11.swf on my OpenMeetings server**** > > **2) **In the “URL:” field, change 127.0.0.1 to the IP address of my > OpenMeetings server**** > > **3) **Leave “useEchoSuppression” and “Use Enhanced Microphone” > enabled**** > > **4) **Right click the test window to bring up Adobe Flash Player’s > menu, select “Settings…”, and ensure that “Reduce Echo” is selected in the > microphone tab.**** > > **5) **Connect by selecting “connectRtmpConnection”**** > > **6) **Select “startBroadCast” to start broadcasting my video and > sound**** > > **7) **Now on the same PC, I select “playBroadCast” to start > receiving my broadcasted my video and sound**** > > **8) **There is a short delay between my speaking and hearing myself > via the speakers in the laptop.**** > > **9) **I adjust the volume on the speakers so that the play back of > my voice is loud and clear, almost to the point where the sound is being > picked up by the laptop’s inbuilt microphone and is producing a delayed > echo.**** > > **10) **Now that all is working well, and I can see my video and hear > my voice, I stop playback, and stop broadcasting, and close the web browser. > **** > > **11) ***Test 2* - Open Internet Explorer and connect to > test-setup.lzx.swf11.swf on my OpenMeetings server**** > > **12) **In the “URL:” field, change 127.0.0.1 to the IP address of my > OpenMeetings server**** > > **13) **I uncheck “useEchoSuppression” and uncheck “Use Enhanced > Microphone” enabled**** > > **14) **Right click the test window to bring up Adobe Flash Player’s > menu, select “Settings…”, and ensure that “Reduce Echo” is still selected > in the microphone tab. **** > > **15) **Connect by selecting “connectRtmpConnection”**** > > **16) **Select “startBroadCast” to start broadcasting my video and sound > **** > > **17) **Now on the same PC, I select “playBroadCast” to start receiving > my broadcasted my video and sound**** > > **18) **As soon as I select “playBroadCast”, the most dreadful > squealing echo starts up, and when I speak there is echo of my speech.**** > > **19) **If I turn the volume right down to where the audio is almost > unheard, the squealing echo stops. But as soon as I try to turn the volume > up where it is useful, the echo returns.**** > > ** ** > > Test 1- No echo when Echo Suppression is enabled.**** > > ** ** > > Test 2 - Background echo is a major issue when Echo Suppression is not > activated.**** > > ** ** > > Thanks,**** > > ** ** > > George Kirkham**** > > ** ** > > IT Manager**** > > Cooperative Research Centre For Greenhouse Gas Technologies (CO2CRC) **** > > NFF House, 14 - 16 Brisbane Avenue, Barton, ACT, 2600, Australia**** > > T: (02) 6120 1600**** > > F: (02) 6273 7181**** > > E: [email protected], **** > > W: www.co2crc.com.au**** > > ** ** > > ** ** > > *From:* [email protected] > [mailto:[email protected]<[email protected]>] > > *Sent:* Saturday, 13 October 2012 11:46 PM > *To:* George Kirkham; Joseph Karwat > *Cc:* [email protected]; > [email protected] > *Subject:* Testing application to compare Acoustic Echo Cancellation > (AEC) in SWF11 in OpenMeetings**** > > ** ** > > Hi George/Joseph, > > I have build a Cam/Mic testing application where you can compare the > settings between AEC and not having AEC in OpenMeetings. > > I could not find any difference, however I also have quite good headsets > and a good microphone with build in echo cancellation on MacBookPro. > > Please see this description on howto install/test AEC feature with the > testing application: > > https://cwiki.apache.org/confluence/display/OPENMEETINGS/Camera+Micro+Testing+Application+Standalone > > Basically you simply copy: > > https://svn.apache.org/repos/asf/incubator/openmeetings/trunk/singlewebapp/WebContent/src/test/test-setup.lzx.swf11.swf > > To: > $RED5_HOME/webapps/openmeetings/ > > a) Then navigate with your browser to: > http://localhost:5080/openmeetings/test-setup.lzx.swf11.swf > b) Input IP/Host on the top => click connect > c) Choose streamname to broadcast => share > > Open a second browser on another machine: > a) navigate with your browser to to the same app. > b) Input IP/Host on the top => click connect > c) Choose streamname to play (Has to MATCH the one in the broadcast of > course!) => play > > This works of course also vice-versa. So you can make a simple 1:1 chat. > > To change settings it is best to press F5 and reload the browser and > reconnect. > > Sebastian > > -- > Sebastian Wagner > https://twitter.com/#!/dead_lock > http://www.webbase-design.de > http://www.wagner-sebastian.com > [email protected]**** > -- Daniel Ascher, M.Ed. President A+ Test Prep and Tutoring "Creating Bright Futures" 505 York Road, Suite 6 Jenkintown, PA 19046 Office: 215.886.9188 Direct: 267.242.9640 www.aplustutoring.com
<<image002.jpg>>
