deadushka;501770 Wrote: > Right. That's what I was talking about. If you listen to SB3, Duet and > Transporter through one and the same DAC the sound differs greatly. And > it's not just jitter related. Difference is too great to blame jitter > for that. But in theory the digital out of all three players should be > the same. So I think (maybe I'm wrong, but it will take an engineer who > designed these players to prove it) some additional processing is > carried out inside these players, it's not just pass through. Or the > analogue part of the players is at work at some stage and this seems to > me a more plausible explanation than jitter related problems. > > I've only tested SB and Duet digital out on the same setup. And > difference is "night and day". This doesn't require any special > knowledge and anyone who is not completely deaf can carry out this > simple test. But unfortunately many people rely on somebody else's > opinion, which seems to be a rule in the Internet these days. > > I myself wanted "to get away cheap" but I'm saving money for > Transporter.
Only the designers could tell us for sure, but I think it is very, very unlikely that either (a) there is digital signal processing going on in the boxes (assuming we have replay gain, etc, turned off) or (b) that the analog circuitry is somehow involved. More importantly, though, I don't see any reason to claim a priori that "it's not just jitter related". Jitter can cause quite enormous differences, especially if it is signal correlated and not just random. I've listened to analog recordings of digital signals where jitter had purposely been introduced, and it is not the sort of thing one can easily miss. If you listen to a few different transports, too, you can easily learn what kind of distortion jitter can cause. Try hooking up a cheap DVD player to whatever DAC you use and get ready to scream. These discussions: http://www.thewelltemperedcomputer.com/KB/BitPerfectJitter.htm http://www.tnt-audio.com/clinica/diginterf1_e.html http://www.digido.com/jitter.html are pretty good. -- rgheck Transporter --> Pass Labs D1 --> Pass Labs Aleph 2s --> Thiel CS 1.6s Transporter --> Adcom GDA-600 --> Pass Labs B1 (DIY) --> Adcom GFA-5800 --> Thiel CS 1.6s Receiver --> T-Amp --> Monitor Audio Radius 90s Receiver --> Sony HT Receiver (Garbage) --> Monitor Audio Raduis HT Setup SqueezeboxServer on a 350MHz Pentium II with 768MB RAM, 1.5TB storage, running Centos 5.x ------------------------------------------------------------------------ rgheck's Profile: http://forums.slimdevices.com/member.php?userid=25803 View this thread: http://forums.slimdevices.com/showthread.php?t=71321 _______________________________________________ audiophiles mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/audiophiles
