Hello, I'm trying to develop a program that will capture all audio using PulseAudio 2.1. It needs to capture this and prevent the audio from being played back over the default speakers. To achive this, I'm loading the null module programmatically like so: pa_context_load_module(context, "module-null-sink", NULL, module_loaded, userdata); This works great and the callback receives an index number of the sink. However, I can't seem to find out how to set the default sink to this new sink. I know how to do it via the commandline: pacmd set-default-sink null However, I'd rather do it using a normal function call. Is that possible in PulseAudio 2.1? Also, unloading the module using pa_context_unload_module doesn't seem to work, the success callback is never called, although I'm calling the unload function with the correct index number (the one received when loading). Unloading using the following command works fine: pacmd unload-module <index-number> Any help will be greatly appreciated. Regards, Frank Groeneveld