Hi
Just thought I'd mention this, we used an old XP sp3 machine for NORMAL audio processing with ST.. I don't think its onboard soundcard supports 192khz even thought ST says otherwise in its current output samplerate (yes I know it can't be accurately detected)
I used a tugicom TX180s TX, tried both a car stereo and a normal indoor receiver.. both picked up stereo pilot but the stereo signal has a high freq squealing sound that can be mildly heard through the TX (when switched to mono). I also tried RDS but I doubt either receiver supports it.
The TX itself has a stereo coder so this could be partly the reason for the squealing, or it could be the dodgy onboard soundcard.. In either case it was just a test for curiosity since I have never used ST's transmitter feature.