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Don Hills

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About Don Hills

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  1. Don Hills

    MQA is Vaporware

    I look forward to you coming up with a measurement that shows why one USB cable sounds different than another one. If they really sound different, there must be a real difference between them. Real differences are measurable.
  2. Don Hills

    MQA is Vaporware

    While technically you are correct, it would be more appropriate in this context to call it "hot air."
  3. Don Hills

    MQA is Vaporware

    Whereas yours is like a steel trap?
  4. Don Hills

    Article: Why Can't Music Artists Do This?

    Done properly, the information is actually there. There's a close analogy in audio: the NOS filterless DAC. There are claims that, like 24 fps video, this is closer to the original source. But consider this: Start with the original analog signal. The ADC samples it at regular intervals. Between those intervals, the analog signal continues to vary. The DAC converter stage then has to accurately reproduce the sample values at the same regular intervals in time. Competent DACs can do that, even filterless. The difference is in what happens in between the sample intervals. A filterless DAC outputs the same value for a whole sample period. A properly filtered DAC produces values in between the sample periods that accurately match the original analog values that existed between the samples.
  5. Don Hills

    USB audio transmission isn’t bit true

    Well, there's your problem. Simply fixed - stop listening to your music via your AM radio. But it should be easy enough to prove your theory. 1. Find a system with Class D amps where the effect is obvious. 2. Record the output of the preamp with the power amps turned off. 3. Repeat with the power amps turned on. 4. Post the resulting files. Oh, wait...
  6. Don Hills

    copying files back to optical discs?

    ... so you're not prepared to actually measure them, but you call *me* closed minded?
  7. Don Hills

    copying files back to optical discs?

    Yes, I do expect it. You say repeatedly that those who are skeptical that you hear differences are closed minded and aren't prepared to listen. But it cuts both ways. You will go to considerable trouble to make and ship media around the world, but aren't prepared to arrange some basic tests to show whether there are actually measurable differences. Not having the equipment is no excuse, there are places which will rent you the required equipment, and the fora are rich sources of people with the qualifications and experience to advise on setting it up.
  8. Don Hills

    copying files back to optical discs?

    I think it's somewhat arrogant for you to assert that you know his mind better than he does.
  9. Don Hills

    copying files back to optical discs?

    I never said you were an E.E. I did acknowledge your actual experience. The rest of your post is thus moot.
  10. Don Hills

    copying files back to optical discs?

    It was a perfectly reasonable question. You claim to have significant electronic knowledge, you should know the characteristics of a clock that can affect the output of a DAC. You should also know that those characteristics can be measured to orders of magnitude more precision than the most golden ears can perceive. So if the difference is audible, it must be trivially measurable. If you (or the "well qualified E.E") haven't measured it, then we only have your word for it. I'm a little surprised that someone of your acknowledged practical bent isn't interested in seeing if your belief matches reality.
  11. Don Hills

    copying files back to optical discs?

    What were the before and after jitter figures?
  12. Don Hills

    MQA The Truth lies Somewhere in the Middle

  13. Don Hills

    MQA The Truth lies Somewhere in the Middle

    Oh, look at that. A flying pig.
  14. Don Hills

    How's this for deblurring?

    Announcement of audio device or process utilising this technology (or at least the buzzwords) in 3...2...1...
  15. Don Hills

    MQA The Truth lies Somewhere in the Middle

    They've already been comprehensively debunked. No need to clutter the thread until you come up with something new to rebut.