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About Dr. AIX

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So far Dr. AIX has created 104 blog entries.

Quadraphonic (QS) Vinyl LIVES!

By | November 4th, 2018|Categories: Real HD-Audio|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

By now many of you must be thinking that I’ve retired or am spending countless hours at the local golf course. The regularity of my posts has slowed to a trickle but not because I don’t enjoy updating my readers […]

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Return from Ireland!

By | October 24th, 2018|Categories: Real HD-Audio|Tags: , |

I’m back in Southern California after a wonderful couple of weeks in Ireland. I was so thankful to Hugh McCarthy and Keith Clancy of the CIT School of Music for the invitation to visit their amazing facility in Cork, Ireland. […]

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A Few Updates

By | September 18th, 2018|Categories: Real HD-Audio|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

I know, I know…I’ve been lazy over the past month and remiss in not writing. No new posts, no rants, no complaining, and no news. As I look around at the usual audio sites and read the usual posts by […]

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HD-Audio Challenge Part II

By | August 16th, 2018|Categories: Real HD-Audio|Tags: |

Thus far I’ve received 83 responses to the HD-Audio challenge — a pretty good number for a casual survey. I spent a couple of hours going through them and created a spreadsheet. Please keep in mind that I’m not a […]

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Off the Grid For A Few Days

By | July 16th, 2018|Categories: Real HD-Audio|Tags: , |

I’ve arrived in Boulder, Colorado for the start of a week of family fun. About 30 members of the extended family are headed to a group of cabins in the woods near Steamboat Springs. There is no cell phone or Internet at the Historic Columbine Cabins. I may try to connect by visiting the local town it’s safe to assume I’ll be completely offline until the end of the week.

I’m going to send out a bunch of recent book orders today.… Read the full article

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Road Trip: Summer 2018

By | July 14th, 2018|Categories: Real HD-Audio|Tags: , |

I’m in Elko, Nevada as I write this post. My wife, Charlie (the family border collie), and I left California last Tuesday headed for the mountains of Colorado for a family reunion. I apologize for not being able to respond to comments and get books sent out as quickly as usual but it’s hard to do when you’re sitting on a boat cruising along the shore of Lake Tahoe or tossing a Frisbee for Charlie after 300 plus miles of driving.… Read the full article

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Dissecting Dynamic Range: Does It Matter?

By | June 24th, 2018|Categories: Real HD-Audio|Tags: , , |

The high-resolution challenge page had been pinged almost 1500 times and over 400 people have contacted me about downloading the files. Don’t worry if you haven’t yet downloaded the files, there’s still plenty of time to get in on the fun (yes, this is meant to be fun not a rigorous test or thorough survey!). I would encourage all participants to explore the option of using the ABX plugin for Foobar to do the evaluation. It elevates the rigor of the test a notch or two.… Read the full article

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High-End Mischief — Again!

By | June 20th, 2018|Categories: Real HD-Audio|Tags: , , |

Thanks so much to everyone that has participated in the High-Resolution Challenge. And thanks for being patient while attempting to download the files…there was a bit of a bottleneck when hundreds of people wanted to download the files on the same day. I hope we all recognize that the High-Resolution Challenge is not a rigorous study. However, it does remove one of the critical flaws in most other studies but remains imperfect nonetheless. There is no way to tell if people are cheating or not — although I have confidence that my readers won’t see any advantage in peeking at the files.… Read the full article

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Are New HD Downloads Really Hi-Res Music?

By | June 15th, 2018|Categories: Real HD-Audio|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

I admit to spending too much time cruising FB. And too many of my FB friends and groups are audio related. When I see a post or comment that tweaks my sensibility, I am not shy about posting a comment or linking to a counter argument. During one such discussion yesterday, I made my usual statement that virtually ALL content available on so called “high-resolution” download sites doesn’t qualify as high-resolution — at least in my stringent definition. I’ve downloaded and analyzed dozens of albums from a variety of sites (Qobuz, HDtracks, ProStudioMasters etc.), Some of them were older and obviously from analog masters (Cat Stevens “Tea for the Tillerman” and Neil Young’s “Harvest”) while others are newer and produced using digital tools (James Taylor’s “Before This World” and Kacey Musgraves’ “Golden Hour”, which includes her hit “Slow Burn”).… Read the full article

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The High-Resolution Audio Challenge

By | June 14th, 2018|Categories: Real HD-Audio|Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |

Recent posts have challenged previous studies trying to establish whether high-resolution audio is perceptible. There’s also a lot of conversation about the same topic on a closed professional audio engineering list I belong to. I found Ethan Winer’s “high-resolution” examples lacking and Meyer and Moran’s study seriously lacking because of the content used. Not surprisingly, both of these gentlemen argued that I need to conduct a study of my own. While I was on the CEA audio board, I submitted a proposal to have them conduct a rigorous study.… Read the full article

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