Hi, I've been spending a bit of time playing with Digital Room Correction and I'm trying to work out the best place/way of including the convolver filter into the audio stream. Obviously I can hack this in and make it work in one situation, but I want a more elegant design that will work in a number of scenarios: - locally with one sound card. - locally with multiple sound outputs (with a different filter configuration for each output). - filter running locally talking to a dumb device output over the network (Apple Airport for example). - talking to another pulseaudio soundserver on the network. with a view to making this relatively easy to use for the average 'consumer'. That suggests Pulseaudio rather than a Jack setup. I'm not sure front end solutions (in the media player or Gstreamer) are appropriate since it would stop, say, applications like Spotify under Wine working properly (incidentally I've packaged Wine with PulseAudio drivers for Ubuntu - http://www.3spoken.co.uk/2009/08/making-wine-sound-work-with-pulseaudio.html). Is there a way with PulseAudio to include the convolver in the audio stream or should I be looking at patching the filter in at the ALSA layer? Am I looking at this the right way? What would you suggest as the best design approach here? All suggestions appreciated. TIA -- Neil Wilson
