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- From: mbk@lyapunov.ucsd.edu (Matt Kennel)
- Newsgroups: rec.audio
- Subject: Re: How can different digital cables sound different?
- Date: 6 Jan 1993 23:23:41 GMT
- Organization: Institute For Nonlinear Science, UCSD
- Lines: 30
- Message-ID: <1ifpltINN1a5@network.ucsd.edu>
- References: <1993Jan4.215906.29420@news.ysu.edu>
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-
- joe@avs.com (Joe Peterson) writes:
- : Maybe I'm missing something, but I cannot figure out how different digital
- : cables can sound different. I can imagine that a poorly shielded cable
- : could cause interference, or a badly impedence-matched one could distort
- : the square wave, but: it's carrying bits! As long as a zero is a zero
- : and a one is a one, how can the DAC get confused? Can a cable add jitter?
- : If I were to load the digital info into a computer instead of a DAC, and
- : there were no errors, I would have an exact duplicate of the digital music
- : samples in the computer's memory. Unless the cable is really bad and
- : causes errors/jitter, how can it matter?
-
- One off the wall possiblity.
-
- Different types of digital cables transmit or block RF radiation ( of higher
- frequency than the data, perhaps) into the DAC section. Depending on the
- design of the DAC this might have deleterious effects.
-
- Of course, if this were a problem, then maybe digital cables with not
- "too much" excess bandwidth beyond the requirements for correct data
- retrieval would be superior. I.e. you want a rounded "weak edge" to your
- digital pulses and not sharp ones.
-
- : Joe
-
-
- --
- -Matt Kennel mbk@inls1.ucsd.edu
- -Institute for Nonlinear Science, University of California, San Diego
- -*** AD: Archive for nonlinear dynamics papers & programs: FTP to
- -*** lyapunov.ucsd.edu, username "anonymous".
-