Digital doesn't compute in the analogue mind.
(reading two books, one is the even pages, other the uneven pages, behind one and the same hard cover)
We are discussing digital signals not DACs, that are shock hooror digital/analogue devices.
And treating digital as analogue is the best way to have problems, if you treat digital as digital and use digital electronic engineering disciplines then you don't have to worry about noise (RF is not digital, its RF and has its own disciplines, if you are referring to noise and digital it is covered by signal integrity (Howard Johnson, Eric Bogatin, Ralph Morrison etc) or EMC (Henry Ott ). Though airborne EMC is unwanted RF.
So the best way to do digital design is to employ digital design techniques, and more importantly, digital layout techniques, especially to minimise EMC and maximise signal integrity.
RF has nothing to do with DACs, so your mixed signal RF comment is way wrong.
Marce,
I understand what you are saying about separation of the digital domain from an analog domain but we are talking about CD players and somewhere the two must meet. At some point the digital must be converted to analog and this is where we get back into the analog domain. I loved the old ads for purely digital speakers, that was a real funny thing when I saw that, as if we could process a digital stream without converting to analog. But I do understand what you are saying about manipulation of a purely digital stream before any analog conversion.
I understand what you are saying about separation of the digital domain from an analog domain but we are talking about CD players and somewhere the two must meet. At some point the digital must be converted to analog and this is where we get back into the analog domain. I loved the old ads for purely digital speakers, that was a real funny thing when I saw that, as if we could process a digital stream without converting to analog. But I do understand what you are saying about manipulation of a purely digital stream before any analog conversion.
My analogue head-stone will read : now he's all digits and bins.
(I just like knowing that the total sum of everything going into a single post, adds up to the cleanest meaning, and has some feeling/sense that it is nicely made, bordering on the aesthetics and arts in me)
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No what I am disputing is the view that digital signals are analogue in the way some are referencing (not the fact that a digital signal is made up of numerous sine waves harmonics). I am quite aware about digital and analogue design, hence devices such as ADC's and DAC's, and I am very well aware of digital/analogue layout (RF as well). My argument is with those that like to attribute analogue style problems to digital signals.
The more you isolate your digital section from the analogue the cleaner you can keep the analogue supplies, which always helps.
But as I said it is not mixed signal RF (I don't even know what that is, never heard it used as a term before.)
The more you isolate your digital section from the analogue the cleaner you can keep the analogue supplies, which always helps.
But as I said it is not mixed signal RF (I don't even know what that is, never heard it used as a term before.)
Marce,
I think we know who you are talking about that wants to turn digital into an analog signal racing up a hill...... The analogies are somewhat off the wall sometimes, very loose mixing of metaphors I would say.
I think we know who you are talking about that wants to turn digital into an analog signal racing up a hill...... The analogies are somewhat off the wall sometimes, very loose mixing of metaphors I would say.
And even the assumption in the metaphor is false.
(though for analytical purposes, false + false = true)
(though for analytical purposes, false + false = true)
No it isn't. 'Make the CD player work' is a clear case of antropomorphism - assigning human-like activities or feelings to innate objects. The CD player doesn't 'work'. Its a piece of equipment where data is processed and output. The error correction activity is part of the normal processing; either one set of bits is selected or another set is selected. The player'doesn't 'know' which is which, it actually doesn't 'know' anything.
What we did say earlier is that damaged CD's *may* (and it still is speculation so far) cause more servo currents from the power supply and that those * might* (and it still is speculation so far) lead to signal contamination via de PSRR. But 'speculation' is the real keyword here...
jan
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Been there, done that (maybe three or four times not 16). Use a DOS or Unix diff utility (it compares the data as bits period), and the difference was null until I compared the ripper from a $10 keychain mp3 player to EAC in paranoid mode. I got ONE bad 16 bit word on an entire 23 min LP cut (the one that was basicly trashed).
Thanks, I was curious as to how robust the CD transfer was. i have better data on digital transport via AES-3 methods.
Yeah, for as long as this has been tossed around, you'd think someone would have some data IF it were actually a real effect.
BTW, the word you were looking for was "pathetic."
Pathetic fallacy - Wikipedia, the free encyclopedia
Are you talking about 75 Ohm 1V coax AES or 4V differential AES. There is a lot of confusion among audiophiles about this stuff. Some even have trouble with RCA to BNC SPDIF.
Consistent with expectations, depending of course on frequency.
Whoa, hold on there. IF you can hear??? A large unsupported assertion, no?
We use the same with superconductors, but just move the decimal point. Our unit of measure is MIIT's. Million I squared T.
jn
Ed, I would suspect that the power line itself would have many percents of distortion, maybe even 10% or more. In that context fuse distortion is not something that should keep us awake at night.
In another context, like a fuse in a secondary 24V line to an amp, you might want to look at fuse distortion as causing supply ripple. Would also be of interest to know.
Yeah you may want to get rid off that obvious speculation 😉
jan
I would never insult the functionality of an “automaton”, invoking anthropomorphism intentionally.
Although it is semantics, “work” was for me “job”, “functions designed to execute” not the verb form. Sorry for my English.
I agree with the rest of your post (I had made use of the verb “may” but only in it’s present form )
It will be safer for me if I stick to reading only the posts in a pathetic mode 😀
George
@Simon7k: This should allay all your fears, though:
Brand new and factory sealed. Ships within the U.S. Furutech TF-3.15A FUSE (6X32mm)3.15A Audiophile grade 6 x 32mm fuse. Furutech Select Series Pure Transmission Fuses 20mm and 32mm Nonmagnetic Time-lag Fuses Material: Copper Caps with direct rhodium
jan
Brand new and factory sealed. Ships within the U.S. Furutech TF-3.15A FUSE (6X32mm)3.15A Audiophile grade 6 x 32mm fuse. Furutech Select Series Pure Transmission Fuses 20mm and 32mm Nonmagnetic Time-lag Fuses Material: Copper Caps with direct rhodium
jan
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