opaqueice;349759 Wrote: > I don't think sine waves are going to show much - it's really hard to > see the difference between the top and middle trace in my plot, even > though there's quite significant distortion there (enough to be easily > audible). > > I would try different frequencies and amplitudes of square waves. If > they always have the same rough shape regardless of frequency, it's > harmonic distortion. If the distortion gets worse at high levels and > better at low, that tells you something about how non-linear it is with > amplitude. > > It might also be worth trying a square wave and/or sampling frequency > that's an integer multiple of the re-sampling frequency of the TACT.
I understand what you are saying...but how can a non-analogue process introduce harmonic distortion? All that's in the chain here is a computer (DSP) that is resampling the incoming bitstream and spitting it out again. The only part of this capable of generating such artifacts is the resampling algorithm... -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal...SB3+Stontronics PSU - Altmann JISCO/UPCI - TACT RCS 2.2X + Good Vibrations S/W - MF Triplethreat(Audiocom full mods)- Linn 5103 - Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Townsend Supertweeters, Kimber & Chord cables Outdoors: Boombox+Creative Sub (If I remember to turn it on...) ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=53345 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
