Mark Waldrep, aka Dr. AIX, has been producing and engineering music for over 40 years. He learned electronics as a teenager from his HAM radio father while learning to play the guitar. Mark received the first doctorate in music composition from UCLA in 1986 for a "binaural" electronic music composition. Other advanced degrees include an MS in computer science, an MFA/MA in music, BM in music and a BA in art. As an engineer and producer, Mark has worked on projects for the Rolling Stones, 311, Tool, KISS, Blink 182, Blues Traveler, Britney Spears, the San Francisco Symphony, The Dover Quartet, Willie Nelson, Paul Williams, The Allman Brothers, Bad Company and many more. Dr. Waldrep has been an innovator when it comes to multimedia and music. He created the first enhanced CDs in the 90s, the first DVD-Videos released in the U.S., the first web-connected DVD, the first DVD-Audio title, the first music Blu-ray disc and the first 3D Music Album. Additionally, he launched the first High Definition Music Download site in 2007 called iTrax.com. A frequency speaker at audio events, author of numerous articles, Dr. Waldrep is currently writing a book on the production and reproduction of high-end music called, "High-End Audio: A Practical Guide to Production and Playback". The book should be completed in the fall of 2013.

6 thoughts on “Newport Beach Show : Day 3

  • Having studied the patent some I was pretty sure MQA didn’t improve anything, but was only supposed to be an audibly transparent conveyance in a low bandwidth package. Of course Robert Harley’s article goes to some length to imply otherwise.

    I have already seen a few postings on various audiophile fora to the effect upon attending some of the early demonstrations of MQA it was clearly an improvement over the file it was fed. Those posters were rather strong in disagreeing with anyone suggesting MQA was meant to be transparent and not an improvement. The meme is already out there and growing. Already it may prove like others impossible to eradicate.

    • I asked the inventor that very question and he agreed with my assessment. It doesn’t get any clearer than that. Although, there were several attendees that experienced the MQA demo in room 306 and told me that the presented did say that the technology improved the fidelity of the audio. I don’t think those presenters have a complete grasp on the issues at hand. And Robert Harley’s over the top assessment didn’t help things.

  • I Won, Stuart never was able to find the time to make it to your studio. Should have got you to put up a double or nothing download bet. LOL
    RE MQA, ” It simply ensures that nothing is lost between the studio and the listener. That’s a very different thing.”
    A this differs from any other lossless compression system in use today except that it makes for much smaller files?

    • You’re right Robert didn’t make is to the studio…although he told me he’d be back in late June and will try to make it. He didn’t realize how far away Irvine is from my place…50 miles in LA traffic. Still, I got to spent more than an hour chatting with him. He has converted my files to MQA and will be providing them to me with an Explorer 2 DAC very soon. I’ll be writing on the system and explain how this is something slightly more than a great lossless conversion CODEC.

  • Wayne Blair


    Thanks for Earl’s message. It was encouraging and I’m happy that you’re being heard by more than critics with an agenda (or master).

    • Earl Richardson

      You’re welcome Wayne! Hi Dr “M”! Even though you may not ‘see’ me, I am following these post carefully. … (I’m still recuperating from the long drive, for me, from LA and the bit of walking around I did do on Friday at T.H.E. SHOW- Mick Jagger said it plainly, ” …what a drag it is growing old….”) 😉

      A little follow-up on the first HD sampler listening session: after going through those great instrumental tracks, I went through the included Audio Setup tracks – and discovered something of interest about my 5.1 system…the (pink or white? ) noise pointers were pretty much spot on (didn’t here anything for the sub woofer, why?), except for the right-front speaker. …that “noise pointer” was emanating from between the right-front and right-rear speaker! I did the test twice with the same results. Really glad I found that out because when I finish this comment, I’m going to order the DAC for my “dream” system: a Musical Fidelity V90! OH! I’m climbing the stairways to heaven! One more major purchase to go, my power amplifier! Dr, sorry to get on YOUR soapbox. … 🙂 (I’ll call you about your computer issue. ..in the meantime, please email me some specifics: make/model number, when was the last time the unit ran successfully, what are the symptoms, error messages, any changes done right before failure? ….you have my card, call anytime! ) peace…


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