Hello I have write a simple echo suppressor inside the echo-cancel module (it is based on "null" version). When I activated it, I also open input and output channels, the module work correctly. I launch it with (same with null): pacmd load-module module-echo-cancel aec_method=null source_master=alsa_input.0.input-microphones adjust_time=1 pacmd set-default-source alsa_input.0.input-microphones.echo-cancel pacmd set-default-sink alsa_output.0.output-speakers.echo-cancel The problem: When I open an other output, at the flush request, it take like 1 or 2 second more time as when I have not activate the echo canceller (work with a paplay) And I did not understand why! Thanks for your answers. HY -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20140930/c314136f/attachment.html>