Phil Leigh;348647 Wrote: > Well - fascinating. > > I created a "perfect" squarewave in audacity and sent that to the SB3 > and then through my DAC. A scope on the DAC RCA analogue output showed > a classic "Gibbs" squarewave...symmetrical overshoot, identical ringing > patterns and complete consistency with no sign of 50Hz ripple effect. > > Seems my DAC is behaving itself anyway! (and the SB3 of course) - and > that Alan Parsons test track is now shown to be the problem. > > I'll try and take a picture of the scope...
The squarewave might look perfect while creating it in audacity but when you play it and look at the scope it'll be not so perfect ;-). Truth is that a perfect square only exists when originated in the analog domain. And even then it just looks perfect on the scope but when you zoom in on a corner you will still find imperfections. The reason is that you need infinite frequencies to create a theoretically perfect one. 16/44 isn't able to do it not even at 1 kHz, no matter what Nyquist says ;-) But nobody in this forums believes that so why bother... Interresting is that you don't need the 16 bits, just one bit would do it... cheers, Nick. -- DeVerm ------------------------------------------------------------------------ DeVerm's Profile: http://forums.slimdevices.com/member.php?userid=18104 View this thread: http://forums.slimdevices.com/showthread.php?t=53345 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
