support modern sound interfaces

Support using all outputs and inputs as recording sources and not just hardware supported input pins. restriction to just input pins is the sort of restriction we see on free software and is not expected on comercial software of software that is marketed as advanced in any way! ideally you'd hoo into th advanced sound mixer in vista and above which provides a full volume slider and mute control for each running program that initalises the sound output API. If you made that level of granularity available in your recording source selection then you would have a significantly advanced product with a possibly unique selling point!