Dr. AIX

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.

3 thoughts on “New High-Resolution Recordings: AES Workshop

  • October 15, 2014 at 5:28 pm
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    I have had similar thoughts about the few Telarc DSD releases that I have purchased over the years: they have good soundstage imaging but lack sparkle in the treble. I have several of the LAGQ releases that were done as primary DSD recordings. They seem to trade a vinyl-like mid range warmth for high frequency sparkle.

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  • October 16, 2014 at 12:20 pm
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    Dear Mark,

    Did you have the same feeling from the stereo mix as well as the 5.1, DSD-64 track from Robert “Ride of the Valkyries record? Did both sound flat and the top end dull? If yes, it reconfirms that DSD-64 (SACD) is not a high resolution container and must be avoided.

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    • October 17, 2014 at 9:41 am
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      Ron, they only played surround mixes during the session. I can’t imagine that the sound would be any different if limited to just stereo.

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