Wombat wrote: > The legendary pre-ringing is something that should be a non-issue with > DACs that work correctly. > Once there were some false implemented hardware that caused > intermodulation of the pre-ringing into the audible band. This is no > problem anymore. > Unfortunately it is easy to show as fancy picture that even can be > "improved" with magic filtering. > This is audiophile tuning at its best. A graph that shows anomalities > that dispaear when filtered. This must be better... > Also remember that this ringing normaly happens above 21kHz and there > are several reasons it shouldn´t be a problem. Even think about that > many tweeters don´t produce much content there. > In reality nearly all non-linear filters will cause lots of time > smearing even starting at frequencies around 10kHz that surely change > the audible signal but look soo good for the pre-ringing picture. > > I seldom take marketing writings but this is what Benchmark thinks about > it and i think they are right: > http://www.benchmarkmedia.com/discuss/forum/general-conversation/apodizing-filters > > I doubt you can produce some signal that causes your Transporter to > hickup. > > It should be possible to produce a file with a huge amount of > pre-ringing with a "maximum phase" filter to do some abx. If you like i > may have a looky how to produce such a file.
Thanks Wombat. Benchmark gives a nice explanation. I'm aware of the phase changes but didn't know that minimum phase filters could cause foldback distortion they talk of... ------------------------------------------------------------------------ Archimago's Profile: http://forums.slimdevices.com/member.php?userid=2207 View this thread: http://forums.slimdevices.com/showthread.php?t=96098
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