I would like to know is there any way I create an application which can intercept all the audio that is being played back on the computer, so I can process the audio (apply some effect) and then pass it further to the Windows audio subsystem?
I just had a glimpse in Vista/7 WASAPI, there is this sAPO: http://www.microsoft.com/whdc/device/audio/sysfx.mspx but it seems that I cannot create my sAPO and install it anywhere I like - I need a WHQL drivers for this.
Is there any universal way to do that? I have an experience with DirectSound but I haven't seen any useful info about intercepting the audio streams.