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Since you asked: Don't know if you recognize UCLA (they have a good reputation), but a Masters is not required for PhD.
I do, and you are wrong, at least for any Applied Science programs at UCLA.
Electrical & Computer Engineering | UCLA Graduate Programs (scroll down the long page).
UCLA said:
Cocka-a-doodle-doo!
How about a measurement? I highly doubt it does anything but degrade performance.
Yes, of course
. It is a sudden jump of load current of about 1A. But please take into account this is an input DC voltage for the RME-ADI. Inside is the additional voltage stabilizer, I was asked to measure input DC.Attachments
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Yes, I'm sure he has, but I'm not convinced he has heard a really good
one. Too many negative digital comments.
Try to be just a little less combative and a little more receptive.
If you run all your up-sampling and format conversion in the computer using
HQplayer, then go USB out to a JLsounds bridge (galvanically isolated and
re-clocked) this can then directly feed a PCM1704 DAC and run it up to 24 /
768kHz. That sounds pretty Hi Rez to me?
This basically bypasses a whole lot of, to a larger or lesser degree,
compromised crap, used in DAC's for the last 20 years - and improves upon
it. IOW, no PLL driven VCXO's, no ASRC chips, no ASIC or even FPGA based
digital filters.
The DAC side runs synchronous with fixed, very low phase noise clocks. Very
simple, very effective.
I suggested this arrangement to Mark4 a long time ago to help him short cut
development time, run Sabre in it's most primitive (and potentially highest
performance) mode. You can then play with filters, modulators, direct DSD,
in HQplayer and see what subjectively you feel matters the most.
Then it's a case of analog stages and power supplies. For the 1704, this is
much easier, for Sabre it is more difficult, for the new AK4499, extremely
difficult.
These are the reasons I suggested the 1704 (for John). It's a very 'analog'
sounding DAC, will do Hi Rez but is not too hard to implement.
No good if you want DSD or to develop a new product.
Clear as mud?
T
Yes, I'm sure he has, but I'm not convinced he has heard a really good
one. Too many negative digital comments.
Try to be just a little less combative and a little more receptive.
If you run all your up-sampling and format conversion in the computer using
HQplayer, then go USB out to a JLsounds bridge (galvanically isolated and
re-clocked) this can then directly feed a PCM1704 DAC and run it up to 24 /
768kHz. That sounds pretty Hi Rez to me?
This basically bypasses a whole lot of, to a larger or lesser degree,
compromised crap, used in DAC's for the last 20 years - and improves upon
it. IOW, no PLL driven VCXO's, no ASRC chips, no ASIC or even FPGA based
digital filters.
The DAC side runs synchronous with fixed, very low phase noise clocks. Very
simple, very effective.
I suggested this arrangement to Mark4 a long time ago to help him short cut
development time, run Sabre in it's most primitive (and potentially highest
performance) mode. You can then play with filters, modulators, direct DSD,
in HQplayer and see what subjectively you feel matters the most.
Then it's a case of analog stages and power supplies. For the 1704, this is
much easier, for Sabre it is more difficult, for the new AK4499, extremely
difficult.
These are the reasons I suggested the 1704 (for John). It's a very 'analog'
sounding DAC, will do Hi Rez but is not too hard to implement.
No good if you want DSD or to develop a new product.
Clear as mud?
T
You’re free to do what you think is best. Just let us not pretend this is actual truth or anything but your own opinion and subjective thoughts.
Interesting ...... I too, have the greatest of respect for those of sufficient academic ability to gain a PhD, which requires seven years study to write a doctorate that no more than perhaps 250 people will read in the authors lifetime. It takes some guts and a lot of motivation (or blind faith!) in order to do that.
My own intellect is somewhat skewed by mathematical and musical dyslexia. Symbols and notation wobble and jump around the page - an eternally hopeless futility. It has made my own education somewhat difficult, but I have persevered and become a reasonably open minded generalist, someone who falls between the arts and sciences and is able to see the shades of grey in between. Sort of like Dave Bowman in 2001 - a very useful chap, and a childhood hero of mine.
I do listen very carefully to what is discussed here, even though most of it goes right over my head, and occasionally I am able to point out what to me is perfectly obvious in what is often overlooked in the heat of debate.
So, as one of the little people, I may seem a nuisance at times, but I mean well. ToS
I think the problem is in a discussion of people with very different background, professions, education, experience. Internet brought something that was impossible in the pre-internet era. Someone for whom this is a hobby asks "did anyone measure ......" just for the reason he does not know much about the subject, works in another field and popular magazines do not give the answers. We usually evaluate something based on our personal experience - difficult to see behind our own horizons and our own limits, whatever they are. So the debate becomes endless and turns in circles.
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