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Posted to dev@openmeetings.apache.org by Vincenzo Raimondo <vi...@gmail.com> on 2013/01/25 18:12:16 UTC
Re: Testing application to compare Acoustic Echo Cancellation (AEC)
in SWF11 in OpenMeetings Raju
Hi
If you are interested you can test my modified application test for compare
AEC.
This work as standard application test-setup.lzx.swf11.swf:
- Copy mytest-setup.lzx.swf11.swf. in your
local:$RED5_HOME/webapps/openmeetings/
- You can then access it with:
http://localhost:5080/openmeetings/mytest-setup.lzx.swf11.swf
- (localhost of course needs to be replaced if you run your red5 server
in the network).
In this application test I have added:
- Configuration options for enhanced audio (needed for acoustic echo
cancellation).
- Select the codec to use for compressing audio. Available codecs are
Nellymoser and Speex (the default)
- Select mode HEADSET when both parties are using headsets. Acoustic
echo cancellation operates in low-echo mode. This mode requires the least
amount of computing power.
Link Download:
mytest-setup.lzx.swf11.swf<http://dl.dropbox.com/u/14152853/mytest-setup.lzx.swf11.swf>
Bye
Link Download:
http://dl.dropbox.com/u/14152853/mytest-setup.lzx.swf11.swf
mytest-setup.lzx.swf11.swf<http://dl.dropbox.com/u/14152853/mytest-setup.lzx.swf11.swf>
2012/12/13 Vincenzo Raimondo <vi...@gmail.com>
> Hi everyone,
> I have tested the app for little time, but I don't understand why none
> microphone does work with the browser Google Chrome.
> Instead with Mozilla Firefox all mic i have used works very well.
>
> Sebastian this is the last version of test-setup.lzx.swf11.swf ?
>
> http://svn.apache.org/viewvc/incubator/openmeetings/trunk/singlewebapp/WebContent/src/test/test-setup.lzx?view=log&pathrev=1397817
>
>
>
>
> 2012/12/6 Joseph Karwat <jk...@jellnet.com>
>
>> Sebastian:****
>>
>> ** **
>>
>> I loaded the test app into our test environment. It runs a recent
>> build. I cannot get the play broadcast to work. When I click “play
>> broadcast” I get this error.****
>>
>> ** **
>>
>> ERROR @test-setup.lzx≈173: ArgumentError: Error #2126****
>>
>> ** **
>>
>> Thanks****
>>
>> ** **
>>
>> Joseph****
>>
>> ** **
>>
>> 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:gkirkham@co2crc.com.au]
>> *Sent:* Tuesday, November 20, 2012 2:16 PM
>> *Cc:* openmeetings-dev@incubator.apache.org
>> *Subject:* RE: SUCCESS - Testing application to compare Acoustic Echo
>> Cancellation (AEC) in SWF11 in OpenMeetings Raju****
>>
>> ** **
>>
>> Sebastian, Vincenzo, Raju,****
>>
>> ** **
>>
>> I did find a few small problems when testing with the “
>> test-setup.lzx.swf11.swf” application.****
>>
>> ** **
>>
>> **1) **I was able to successfully test using a single PC by
>> broadcasting on “stream1” and receiving on “stream1”. That is on my test PC
>> I would broadcast on “stream1” and then also receive on “stream1” using the
>> same PC. This worked well for testing the AEC feature.****
>>
>> **2) **It seems that it does not matter what I name the two streams
>> for the Broadcast and Playback, e.g. stream1 & stream1 or stream1 & stream2
>> or George & Tony, the test application simply connects the BroadCast stream
>> to the Play-Broadcast stream on the same PC, regardless of what I name the
>> streams. I cannot connect the Play-Broadcast stream of one PC to the
>> steam started on another PC.****
>>
>> **3) **As reported above in step 2, when I attempted to use two
>> PCs, for a 1:1 communications I was not able to do this, maybe I did not
>> understand how to do this?. I could only send and receive on the same PC,
>> I was not able to do the following;
>> Send from PC1 on “stream1”
>> Receive on PC2 on “stream1”
>> Send from PC2 on “stream2”
>> Receive on PC 1 on “stream2”
>>
>> What happened is that the playback on PC1 would only receive the stream
>> that it is sending, that is “stream1”, no matter what I called the
>> “playBroadCast” stream name.****
>>
>> **4) **I also found that, as mentioned in Sebastian’s instructions,
>> if I ever stoped the broadcast or the playback, I had to close the browser
>> and then try again, if I was to be able to receive the broadcast again.
>> Thus between testing with “userEchoSuppression” turned on and then testing
>> with it turned off, I had to close the browser and reset up the test (no
>> problem doing this, just shows that the code does not fully close and
>> restart the connection).****
>>
>> **5) **While I used the server’s domain name in the web browser’s
>> URL, I had believed that I had to use the actual IP address of the domain
>> name in the “test-setup.lzx.swf11.swf” own URL: field, but this
>> understanding was incorrect, I was also able to use the server’s domain
>> name in the URL: field. And once again, without the options
>> “useEchoSuppression” and “Use Enhanced Microphone” checked, the echo is
>> very bad, but when running the tests with the default of these options
>> selected, the echo is *greatly* reduced *on a laptop that does not have
>> any hardware AEC features*, and when using the internal speakers and
>> microphone.****
>>
>> ** **
>>
>> Below is the “Laszlo Debugger” log output from my test server. If you
>> want to test with my server, you can connect with
>> http://www.goproject.info:5080/openmeetings/test-setup.lzx.swf11.swf but
>> I the bandwidth is limited. Occasionally I get bandwidth warning messages
>> in the log file.****
>>
>> ** **
>>
>> connectRtmpConnection URL: *rtmp://
>> 59.167.79.92:1935/openmeetings/testscope* ****
>>
>> setId 65 ****
>>
>> devrtmpconnection «<anonymous extends='canvas'>#2#1| #canvas» _onStatus
>> NetConnection.Connect.Success ****
>>
>> «flash.media::MicrophoneEnhancedOptions#3| {}» ****
>>
>> netStream_onNetStatus: NetStream.Publish.Start «flash.net::NetStream#4|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Play.Reset «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Play.Start «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Video.DimensionChange «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Play.InsufficientBW «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Pause.Notify «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Play.Stop «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Buffer.Flush «flash.net::NetStream#5|
>> [object NetStream]» ****
>>
>> netStream_onNetStatus: NetStream.Unpublish.Success «flash.net::NetStream#4|
>> [object NetStream]» ****
>>
>> lzx> Debug.inspect([object NetStream]) ****
>>
>> «flash.net::NetStream#5| [object NetStream]» ****
>>
>> «flash.net::NetStream#5| [object NetStream]» ****
>>
>> lzx>****
>>
>> ** **
>>
>> If anyone has more information about how to use the “
>> test-setup.lzx.swf11.swf” application or makes modifications, I would
>> like to do further testing, for example a test between two to four
>> users/PCs, though Joseph’s comment about integrating this into Openmeetings
>> would give the greatest flexibility for testing. I would suggest having
>> just one admin setting to turn on or off the use of all AEC features, e.g.
>> both “useEchoSuppression” and “Use Enhanced Microphone”. Personally I
>> would just have these items turned on permanently in the code with no
>> options.****
>>
>> ** **
>>
>> If anyone can explain to me what the “Adobe Flash Player Settings”
>> “Reduce Echo” option actually does, I would be very interested to know.
>> That is how this setting integrates with a Flash application’s code, like
>> in Openmeetings.****
>>
>> ****
>>
>> ** **
>>
>> Thanks,****
>>
>> ** **
>>
>> George Kirkham****
>>
>> ** **
>>
>> *From:* Vincenzo M. Raimondo [mailto:vincent.raimondo@gmail.com<vi...@gmail.com>]
>>
>> *Sent:* Wednesday, 21 November 2012 4:05 AM
>> *To:* seba.wagner@gmail.com
>> *Cc:* Joseph Karwat; George Kirkham;
>> openmeetings-dev@incubator.apache.org
>> *Subject:* Re: SUCCESS - Testing application to compare Acoustic Echo
>> Cancellation (AEC) in SWF11 in OpenMeetings****
>>
>> ** **
>>
>> Hi****
>>
>> ****
>>
>> I'm finding just these ActionScript3 docs. thank you Sebastian****
>>
>> There is the source code of test-setup.lzx.swf11.swf ? If is possible, I
>> would work on this test.****
>>
>> Thanks****
>>
>> ****
>>
>> ****
>>
>> *From:* seba.wagner@gmail.com ****
>>
>> *Sent:* Tuesday, November 20, 2012 1:26 PM****
>>
>> *To:* Vincenzo M. Raimondo <vi...@gmail.com> ****
>>
>> *Cc:* openmeetings-dev@incubator.apache.org ; George Kirkham<gk...@co2crc.com.au>; Joseph
>> Karwat <jk...@jellnet.com> ****
>>
>> *Subject:* Re: SUCCESS - Testing application to compare Acoustic Echo
>> Cancellation (AEC) in SWF11 in OpenMeetings****
>>
>> ****
>>
>> Hi,
>>
>> thanks for testing this, its actually pretty hard to test this locally
>> and with my equipment.
>>
>> About the questions:
>> @Joseph: Actually there are already instructions online. You can put this
>> testing SWF into any production OpenMeetings instance. There is no need to
>> restart Red5 or anything.
>> See:
>> https://cwiki.apache.org/confluence/display/OPENMEETINGS/Camera+Micro+Testing+Application+Standalone
>>
>> @Raju: Yes I guess we will make a SWF11 runtime available :)
>>
>> @Vincenzo Actually this is what we have build the Testing application for.
>> See the link above how to get it. It is rather easy to set up.
>> To see what options you could add on top please refer to the
>> ActionScript3 docs.
>> See:
>> http://help.adobe.com/en_US/FlashPlatform/reference/actionscript/3/flash/media/MicrophoneEnhancedMode.html
>>
>> Sebastian****
>>
>> ** **
>>
>> 2012/11/20 Vincenzo M. Raimondo <vi...@gmail.com>****
>>
>> ****
>>
>> Hi****
>>
>> I'm following with much interest thi test application.****
>>
>> I preface that I not test it yet.****
>>
>> I have two questions about this:****
>>
>> There is possibility to assess whether the echo cancellation can be made
>> better by passing some parameters specific to the functions that implement
>> it ?****
>>
>> You can customize the echo cancellation on the basis of experimental
>> tests carried out in the specific scenario in which the web conference work?
>> ****
>>
>> ****
>>
>> Thanks****
>>
>> ****
>>
>> *From:* Joseph Karwat <jk...@jellnet.com> ****
>>
>> *Sent:* Tuesday, November 20, 2012 12:02 AM****
>>
>> *To:* 'George Kirkham' <gk...@co2crc.com.au> ; seba.wagner@gmail.com *
>> ***
>>
>> *Cc:* openmeetings-dev@incubator.apache.org ;
>> openmeetings-user@incubator.apache.org ****
>>
>> *Subject:* RE: SUCCESS - Testing application to compare Acoustic Echo
>> Cancellation (AEC) in SWF11 in OpenMeetings****
>>
>> ****
>>
>> 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 | ****
>>
>> *Jell Networks, Inc**. *****
>>
>> Enterprise Video Collaboration Solutions****
>>
>> ****
>>
>> ****
>>
>> ****
>>
>> *From:* George Kirkham [mailto:gkirkham@co2crc.com.au]
>> *Sent:* Monday, November 19, 2012 2:00 PM
>> *To:* seba.wagner@gmail.com; Joseph Karwat
>> *Cc:* openmeetings-dev@incubator.apache.org;
>> openmeetings-user@incubator.apache.org
>> *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: gkirkham@co2crc.com.au, ****
>>
>> W: www.co2crc.com.au****
>>
>> ****
>>
>> ****
>>
>> *From:* seba.wagner@gmail.com [mailto:seba.wagner@gmail.com<se...@gmail.com>]
>>
>> *Sent:* Saturday, 13 October 2012 11:46 PM
>> *To:* George Kirkham; Joseph Karwat
>> *Cc:* openmeetings-dev@incubator.apache.org;
>> openmeetings-user@incubator.apache.org
>> *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
>> seba.wagner@gmail.com****
>>
>>
>>
>>
>> --
>> Sebastian Wagner
>> https://twitter.com/#!/dead_lock
>> http://www.webbase-design.de
>> http://www.wagner-sebastian.com
>> seba.wagner@gmail.com****
>>
>
>