Kuro;515190 Wrote: > ADM is flawed in many ways. I can name a couple, but there are more. > > 1. It is unable to detect differences b/w a transport of low jitter and > high jitter. The sonic differences can be clearly heard including ABX > tests. Maybe they dropped the stuff that they classified as > "uninteresting". > > 2. It falsely assumes a component change will change the entire audio > band, so some differences can be found. But in fact many components > will only change the frequency of a certain audio band. This places the > burden on the user to supply a test track with the proper energy on > certain frequency spectrum in order to be able to find the differences. > The test tracks in their samples with just a female vocal is a bad one, > it just can't find changes in low bass. > > I prefer ABX. It is a much more reliable test than ADM. > > When I go auditioning a vendor's hi-fi gear, I never arm myself with > just one music track and be able to determine if that system is good or > great. Many music tracks I'm familiar with are required to fully test > the capability of a system. Using one test track on ADM is no different > than the above.
1) What! - if there is a difference caused by anything it WILL detect it. This includes jitter. What do you mean by "maybe they dropped stuff"? - they can't selectively ignore differences caused by one thing but not by another! That really would be very clever... 2) ADM makes no assumptions about "audio bands" it simply compares the entire signal (unlike your ears/brain which listen to things differently each time). 3) Who said anything about using just one track? Regardless of that, ADM will detect a difference - if really there is one - using ANY track from a piano to a full orchestra. Yes OBVIOUSLY if you use a track with nothing below 500Hz and the only change affects frequencies below 500Hz then it won't find a difference. However you would have to construct such a test artificially. Using normal music as a source this won't happen. You need to see that video that CliveB posted, then come back and we can continue... -- Phil Leigh You want to see the signal path BEFORE it gets onto a CD/vinyl...it ain't what you'd call minimal... SB Touch Beta (wired) - 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), Townsend Supertweeters, Blue Jeans Digital,Kimber Speaker & Chord Interconnect cables Kitchen Boom, Outdoors: SB Radio ------------------------------------------------------------------------ Phil Leigh's Profile: http://forums.slimdevices.com/member.php?userid=85 View this thread: http://forums.slimdevices.com/showthread.php?t=74721 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
