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.

9 thoughts on “Picking the Right Demo Tracks

  • July 19, 2014 at 3:26 pm
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    Mark,
    It would be interesting to find out what your readers use for demo tracks for their friends (or clients in my case)
    Perhaps a list of their ten favourite tracks.

    BTW, being a fan of Prog-rock, I was overjoyed when I found HRA versions of Yes recordings. Up until then, besides my CD’s and records, I was listening to “Fragile” on a 5.1 DVD-audio bought a long time ago. That was my first HRA purchase. Of course I wondered whether they used the tape master, CD master or DSD master for these HD Tracks downloads….

    Reply
  • July 19, 2014 at 3:50 pm
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    Hi Mark
    I would pay more for quality music like yours , but I have looked through your site , but there is nothing there that floats my boat . It’s a shame that you have but not .

    cheers Lance

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    • July 19, 2014 at 3:55 pm
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      Lance…I always chafe a little when someone says that I don’t the types of music that they prefer. It’s certainly true that I don’t have the big contemporary stars. But if you tell me a little about your preferences…I’m willing to bet I’ve got something that would fit the bill.

      Reply
  • July 20, 2014 at 6:29 am
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    Mark ,,, really enjoying your blog and especially liked the Mosaic demo tracks. Enjoyed playing them for my partner who is a musician but not audiophile, and hearing her describe what she heard and ultimately liking the uncompressed or slightly compressed tracks the best.

    Timely on your other reader’s question about Brain Salad Surgery. I bought the download (from SITE X) the other day and overall I’d say it sounds a lot better than my Amazon downloaded MP3. Of course much of that could be from the remastering from the original tapes. I did hear a problem with one track that seemed very distant and muffled and then got brighter and more present 1:30 into it. Waiting to hear back on my query to X support on that. I have begun to look at waveforms in Sony Soundforge and comparing what I hear to what I see, to see which 96/24 downloads really do have more dynamic range.

    Marc

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    • July 20, 2014 at 8:36 am
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      Remastering can make all the difference.

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  • July 20, 2014 at 6:56 am
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    Mark,

    Speaking of Jennifer Warnes, I believe you were working with her on a special project at one time. Any chance that this will be resurrected?

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    • July 20, 2014 at 8:38 am
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      I have an entire album that I produced with Jennifer over 9 years ago. It is without doubt the finest recording she has ever made…new tunes, great performances and of course, absolutely amazing sound. In surround, these tracks are without equal. But she won’t let me release it. It’s a shame really.

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  • July 20, 2014 at 9:43 pm
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    This post is about “tracks that make the hardware shine”, but I am more interested in tracks that make it easiest for me to distinguish excellent hardware from good hardware. Because I am a buyer not a seller.

    Any suggestions, Mark?

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    • July 21, 2014 at 9:03 am
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      Grant…that’s an interesting question. My personal favorite track to evaluate hardware is the “Mosaic” track…lots of highs and lows, dynamic range and intimate sounds.

      Reply

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