Pat Farrell;131102 Wrote: > PhilNYC wrote:[color=blue] > I'm not an audio design engineer, so I could be wrong. > But I understand it exactly the opposite of this. > > Digital processing has to have analog filters to cut out > unwanted signals and noise. If you use a 44.1kHz sample, > you need a radical filter to cut off signals about 20kHz. > The standard implementation uses 12dB/octave or even 18dB / octave > filters. These do evil things to phase. > > So if you over/re/up-sample at 96kHz or 192kHz, > you can use digital filters (IIR, etc.) for the worst parts, and then > use gentle single order analog filters down in the 20-20kHz range. >
I thought that's what I said...? :-) -- PhilNYC Sonic Spirits Inc. http://www.sonicspirits.com ------------------------------------------------------------------------ PhilNYC's Profile: http://forums.slimdevices.com/member.php?userid=837 View this thread: http://forums.slimdevices.com/showthread.php?t=26685 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/lists/listinfo/audiophiles
