nicolas75;572334 Wrote: > Correct me if I'm wrong, but I think that the only well defined case is > the following one : > > You downsample a high resolution file, then upsample to the original > sample rate, which gives you the very same, binary identical, original > file. > > In that case, you are sure that there is no more information in the > high resolution file, than in the downsampled one. > > > Otherwise you can say nothing. > I think it is easy to write a software which upsample a file, and mix > it with high resolution noise, or whatever kind of "reverse dithering" > dsp. > This will add artificial high resolution data you can hardly > distinguish from real high resolution recording.
Nope. It's really easy to test if the information is "noise" or not. You just need to know how to use DSP tools to pitch-shift stuff... Anyone who has actually worked in modern recording studios knows how to do this. :-) -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... Touch(wired/XP) - TACT 2.2X (Linear PSU) + Good Vibrations S/W - MF Triplethreat(Audiocom full mods) - Linn 5103 - Aktiv 5.1 system (6x LK140's, ESPEK/TRIKAN/KATAN/SEIZMIK 10.5), Pekin Tuner, Townsend Supertweeters, Blue Jeans Digital,Kimber Speaker & Chord Interconnect cables Kitchen Boom, Outdoors: SB Radio, Harmony One remote for everything. ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=74688 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
