BigEars;202871 Wrote: > Thought I would try a bit harder to identify the difference (if any > audible in my system); all I knew previously was that I was keen to > switch back from bypass to upsampling, but not so keen to go back to > bypass - upsampling seemed easier on the ear and more natural. > > I chose a couple of songs with a good mix of low-level detail and > louder passages - Bonnie Rait's 'Thing Called Love' and 'Love Letter' > from Nick of Time (FLAC), and switched back and forth multiple times > listening to different aspects each time. > > Very subtle, but definite; on complex sections upsampling mode held the > picture together better, whereas it could get a tiny bit more confused > and difficut to pick out subtleties on bypass. Loud vocal was more > likely to sound very slightly harsh on bypass, less so with upsampling, > which generally made it easier to hear low-level background detail > throughout. > > Most surprising was a more solid punch to both snare and bass, with > more information about the sound of both instruments - I guess this > comes again from better resolution of small details, especially on loud > sections. > > All this is in broad agreemenet with most theories about why upsampling > can sound better - it seems to be less distortion of the baseband due to > differential non-linearities in the DAC process, as a result of > signal-dependent ultrasonic dither resulting from the very gentle > roll-off filter allowing signal up to the Nyquist point of the 192KHz > signal to enter the DAC. Some would claim that the necessity of > re-clocking close to the DAC due to 192KHz being asynchronous with the > input clock also helps by reducing jitter, but I don't have enough > details about Simon Lee's implementation to know if this a factor > here. > > Anyway it sounds easier on the ear AND more revealing - so it works for > me; these are tiny differences that seem to make a noticeable difference > on enjoyment of the music. Anybody else got experiences on this to > share? > > Paul
Although I don't have the Stello, my impressions on upsampling sound are similar to yours. Almost without exception, upsampling sounds better -- smoother, more detailed, better soundstaging etc.. As to all the technical reasons why, your explanations sound reasonsable to me -- but I am unsure. -- jt25741 SB3->AR Masters Coax -> PS Audio DLIII -> Cardas Golden Reference XLR -> Sim Audio P5 -> Cardas Golden Reference XLR -> Sim Audio W5 -> Cardas Golden Reference Hi-Mid,PS Audio Xstream Plus Low-> Magnepan 3.6R ------------------------------------------------------------------------ jt25741's Profile: http://forums.slimdevices.com/member.php?userid=8645 View this thread: http://forums.slimdevices.com/showthread.php?t=32055 _______________________________________________ audiophiles mailing list audiophiles@lists.slimdevices.com http://lists.slimdevices.com/lists/listinfo/audiophiles
