Hi, I have downloaded pulse audio source code from the link shown below http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=0ecf51119a349e51daeea0437eba9a14d69ce533 i have untar the file and have compiled and installed the pulseaudio by following the steps below: $:./bootstrap.sh $:./configure $:make $;sudo make install Pulseaudio has been installed and i have started the daemon using $:pulseaudio --start I have loaded the echo-cancel module as shown below $:pactl load-module module-echo-cancel I have run the CLI and found the echo cancel module loaded as shown below $:pacmd << list-modules index: 17 name: <module-echo-cancel> argument: <> used: 0 load once: no properties: module.author = "Wim Taymans" module.description = "Echo Cancelation" module.version = "UNKNOWN" << I have connected mono mic to the pc Now I have run the gstreamer pipeline to test the working of echo cancel module $:gst-launch-0.10 pulsesrc ! pulsesink I am able to loopback my voice but still , echo is prevalant. Can you please tell me how to check whether echo canceller has been enabled or not and if it is not enabled then how to enable and run it. Thanks Regards, Abdul Moiz -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20110721/5ca7bed4/attachment.htm>