Archimago;695323 Wrote: > If you feed a 16-bit computer generated -90dB undithered 'sine' wave, > you're essentially feeding into the DAC a 1kHz (in this case) 1-bit > *square* wave. This is exactly what the measurements show. >
Despite my doubts and musings yesterday, I don't think so. What is the difference between a sine wave and a square wave at -90db in 16 bit? None. A 16/44 DAC should smooth this to a sine wave or an approximation analoguely (I think this sinc function thingy is about this). A 24/96 DAC would upsample and interpolate the data points of this tone into a smoothish sine wave shape (because in fact we can assume it's NOT a square wave - a square wave would require an infinite series of harmonics yet we know the data is band limited to satisfy Nyquist). Please see here: darrenyeats;695297 Wrote: > Phil, > See these posts: > Submitted by Miska on Sun, 02/12/2012 - 17:43. > Submitted by Miska on Mon, 02/13/2012 - 02:48. > Here: http://www.computeraudiophile.com/content/Why-2496-not-24192 > (search for 'miska') > Darren -- darrenyeats http://www.amazon.co.uk/gp/richpub/listmania/byauthor/A3H57URKQB8AQO/ref=cm_pdp_content_listmania/203-7606506-5721503. SB Touch ------------------------------------------------------------------------ darrenyeats's Profile: http://forums.slimdevices.com/member.php?userid=10799 View this thread: http://forums.slimdevices.com/showthread.php?t=94054 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
