Hello, this is the first version of a patch to add module-virtual-surround-sink. This module provides a virtual surround sound effect by folding the audio signal with a measured impulse response. What do you think? I have uploaded suitable impulse responses to: http://stuff.salscheider-online.de/hrir_kemar.tar.gz http://stuff.salscheider-online.de/hrir_listen.tar.gz The first archive contains an impulse response for the KEMAR dummy head and is quite small. If that impulse response does not work well for you, you can try the listen database. This archive contains a folder "demos" that should help you to find a suitable impulse response. Regards, Ole