seanadams;348695 Wrote: > This is wrong. When you have a 44.1KHz PCM file, it is implicit that the > signal is band-limited to the Nyquist. This is the case whether it was > sampled, generated mathematically, typed by hand, whatever. Just > because the numbers go -32767, +32768, -32767, 32768, for example, does > not mean that they represent a square wave. You could in practice sample > those values by recording a full-scale 22.050 sine wave, and that would > be the correct output for a DAC to play given those numbers as input. > It would also be the correct waveform to generate if that data were > mathematically resampled to a higher frequency, or drawn on a computer > screen.
My head hurts. Sean, are you saying that the number sequence 0,1,0,-1 (repeated at a given frequency) is not a mathematical representation of an arbitrary squarewave? And why does the FIR display in the editor show it as a squarewave and not as it's ringing, overshooting equivalent that I can see on the scope after it has been reconstructed? Obviously I'm missing something obvious? (won't be the first time) -- 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
