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.

4 thoughts on “The Birth of DSD – Part I

  • Dave Trey

    Your read today shows all the signs of a well thought out, determined essay, one deserving of archive. There’s no replacing concise dialog, ask any lawyer. Thanks for picking up the ball, Mark. Audio is mired in “fan bases” whose narratives support only their component investments. The self deceived can’t wait to pontificate their ill informed choices. After all, especially when it comes to social media, if you hear it enough, “it has to be true”, right ? With the inevitable streaming audio standards becoming the norm, we can only hope we aren’t forced to hold our CDs dear, as those with vinyl upon the dawn of digital.

  • Ivan Vestergaard

    It’s “Philips” not “Phillips”

    • Admin

      You’re absolutely right…I keep writing Phillips because of Simon Phillips. I’ll change it. Thanks.


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