The first part goes something like this: pactl load-module module-null-sink module_name="hydro" pactl load-module module-combine-sink module_name="transmit" slaves="hydro.monitor,<name of your microphone source>" (That second line fails on my machine.) Then in a separate terminal window: PULSE_SINK=hydro hydrogen And in a third terminal window: PULSE_SOURCE=transmit.monitor <name of your icecast or whatever app> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.freedesktop.org/archives/pulseaudio-discuss/attachments/20130207/8ac44bfe/attachment.html>