In Reply to: RE: +1 Thank you posted by AbeCollins on August 21, 2021 at 07:07:45:
....explained very clearly.As my first take was that gusser's post was a subtle tease that you fell for, let's look at a few of his points. (In passing, why has the topic shifted from soundchekk's discussing DAC input circuitry to banal points about consumer-grade HDMI cables?)
LCR parameters affect high frequency performance in any and all cables to varying degrees. But what the audiophiles don't understand is how the analog signal, be it audio or video, is represented in a so called digital interface.
This sounds jolly impressive but I don't know what it means. Can you help? Nor do I know who "the audiophiles" are. (If it's all "explained very clearly", spare us a muddle.)
I'd hazard that most, probably all, audiophiles are well aware in general terms of the difference between an analogue and a digital signal even if the fact that a digital signal is a special case of an analogue signal and why that matters eludes some who really ought to know better.
Excessive capacitance [. . . ] will not result in loss of treble response. The failure will be clicks and pops and then only when the HF rolloff reaches the cliff point. Up to that point there is no recovered analog signal impairment.
Who in this thread has suggested the capacitance of a digital cable correlates directly with HF SQ? We're not considering 'Excessive capacitance' on its own, let alone what constitues 'excessive capacitance'.
Are you or gusser seriously suggesting that folk posting here, esp those with a technical background, believe that the capacitance of a digital cable directly affects the HF response of the host system?
But a poor HDMI cable is not going to alter color rendition, alter black levels or induce noise into the image
Again, who here has suggested it does? But power supply issues or the quality of the clocking devices in, say, a USB interface unarguably can and do affect the SQ of a DAC. Ditto the contruction quality of USB cables, all for well-understood reasons.
There is some truth to digital audio cables carrying noise into DACs. But I think this is highly exaggerated by the cable vendors.
And I think the issue is both poorly understood and seriously under-estimated by cable manufacturers and vendors alike though the likes of Shunyata are honourable exceptions. (See also companies like Wavelength Audio et al.) IME, PSU manufacturers typically have a better handle on the issue.
Jitter is a far more complex subject and yes, if severe enough, it can cause audible distortions.
OK, how severe does jitter have to be to be audible? Citations, even . . .
AC: That's why I'm still waiting for a good explanation, not technical myths perpetuated by USB decrapifier makers, USB cable makers and those who parrot their marketing hype
Much as I'm still waiting either for an acknowledgement from you that USB Audio is a real-time process or a "a good explanation, not technical myths" as to why that fact doesn't matter. (Rest assured, it does.)
D
Edits: 08/21/21
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Follow Ups
- RE: +1 Thank you - Ryelands 10:39:47 08/21/21 (4)
- RE: +1 Thank you - gusser 22:23:53 08/21/21 (3)
- RE: +1 Thank you - Ryelands 05:52:16 08/22/21 (2)
- Avionics Engineer - gusser 18:06:44 08/23/21 (1)
- RE: Avionics Engineer - Ryelands 04:20:50 08/24/21 (0)