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RE: You Are Not Alone........

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Todd Krieger

In Reply to: RE: You Are Not Alone........ posted by cfraser on July 13, 2014 at 10:53:07

"My CD rips are perfect (!)..."

The vast majority of CD rips are perfect, in regard to the numeric data represented (as long as "normalization" isn't utilized).... But rips by different programs sound different because of how the data is written to disk.... The differences occur during playback, where one rip induces a different jitter response to another.... And would differ yet again with different playback software, or even after an update to the operating system.

And the jitter responses would change yet again if the hard drive were to be "defragged", or recovered from backup data in the event of a drive crash.

Too many variables, and too little control over them.
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Follow Ups:

RE: You Are Not Alone........ - cfraser 12:09:44 07/14/14 (0)
I like to think that the SBT kind of isolates me from most of the disc-reading anomalies. Gets the "music" via ethernet cable; has ~15s buffer for the .wav it gets from an original CD source, ~5s for the .wav it gets from a 96/24 DVD-A source. So the SBT has relatively little to do, just assemble the packets (from an otherwise unused network) and get them to the S/PDIF output. I like to think that the SBT's S/PDIF output is the limiting factor for that part of the pre-DAC chain, and I like to think I've done a half-decent job on the linear PS too. Perhaps "I like to think" a little too much... :) It all sounds decent, but I can't say it sounds better than my best CDP (same DAC), and there are much better CDPs than mine.
Just wanted to correct something I noticed I said in my previous post. Though I said the CDP sounds a bit better, I also said it may have a *less* robust AES/EBU interface circuitry than the BDP-1. The context in which I said that contradicts my argument as to my speculation as to why the CDP may sound better...so I shouldn't have said it period. I *do* know what the CDP's AES/EBU output circuitry exactly is. But I *don't know* what it is in the BDP-1 as it's not mine so I won't open it, it's on longish-term loan from a military friend who's temporarily stationed in a non-120V/60Hz country. The BDA-1 is mine.
I have not *directly* compared the BDP-1/BDA-1 to the SBT, this is not easy to do here in a relatively quick manner (would be easier with the BDP-2), but listening to both over time, there's not a lot of diff. The diff is more obvious to me when using the CDP.
I am a bit anal about defragging my HDs that I play music from. I even defrag the backup drives...that could be "dangerous".

Edits: 07/14/14
RE: You Are Not Alone........ - Tony Lauck 08:17:16 07/14/14 (0)
If a rip was made to hard drive, then if there is any question the ripped files can be copied hard drive to hard drive. This will remove any physical effects associated with the original rip, replacing them with the physical effects associated with the file copy. If you are paranoid, you can carry this file copy process multiple generations. Because of the speed and ability to rewrite files on a hard drive this is a quick and easy tweak. How much it affects the sound you hear will depend on your system, etc...

Tony Lauck

"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar

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