opaqueice;175930 Wrote: > That's a good point - that hadn't occurred to me. EMI in the range from > 20kHz - 40kHz would be inaudible added to the analogue output, but > jitter at that frequency could intermodulate with the digital signal to > produce audible distortion. For example 25kHz jitter can produce 10kHz > noise when a 15kHz signal is being played. (Note that jitter >40kHz > has no effect, assuming 20kHz is the threshhold for human hearing.) > > For this to work as an explanation you need the EMI from the switcher > to be concentrated mostly above 20kHz, which isn't consistent with the > measurements in the thread Skunk linked to. But still, it's an > interesting idea... what DAC do you use? > > Thanks for the interesting comment.
I use the D/A card in my TacT RCS 2.2x (which I managed to make sound pretty good again, don't ask my how). So I guess the DAC is the entire TacT -with its peculiarities. I'd like to test with a simpler DAC -preferably one without forced sample rate conversion. Might build one for this purpose. -- P Floding ------------------------------------------------------------------------ P Floding's Profile: http://forums.slimdevices.com/member.php?userid=2932 View this thread: http://forums.slimdevices.com/showthread.php?t=32231 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
