Mixerman, are you short?
I am short, and very sensitive to low frequency sound.
WTF?
Bear with me, I'm looking for a way into this...
I have followed this process with interest. MM's assertion should be repeatable and testable. The Chicago Test attempted this. I have much admiration for the principals who brought the Test about. But, methinks the slanging match has only just started.
Just to state the premise again; Mixerman asserts that a transfer of audio from 2" tape to ProTools loses something at the lowest audible frequencies, the bottom octave. I hope I have that right.
Although the test files have yet to be posted, we do have some initial responses to the Chicago Test here on the REP, and at best they are inconclusive. The assessments of the the sounds seem to be totally subjective. AE #1 hears one thing, AE #2 hears something else. This in itself is not surprising. Surprising is the fact that nobody has addressed this element of the audition chain. Some say that they can hear the low frequency loss, others say they can't. Surely it is not difficult to measure the frequencies of the two recorded sources? Given two source audio progammes, one reference microphone, and one frequency analyser, the physical attributes of each audio programme can be measured and compared. Once you introduce the real-live ears of people, then you introduce a whole other set of variables; you introduce subjectivity.
What the fuck was I talking about.....?
Oh yeah! Now I remember. I'm a short-arse, and I have a problem with low frequencies.
I don't think that this is a psycho-acoustic thing, I think that it's a physiognomic acoustic thing. It's about how we're built.
For a long time I thought it was just me. Wherever I was, listening to music, live or recorded, there was (and still is) too much bass. For me, the way most folk have the bass just walks roughshod over all the good stuff.
And then, I had a conversation with and old friend of mine who is a first-class FOH soundman. He has much experience with a band who were, are, very big in Japan. He wasn't in the least surprised when I said that I find most concert sound to be too bass-heavy. It was he who told me that it's because I'm short. When mixing his band in Japan he has a default bass level in mind on account of the generally short stature of the audience.
Maybe he's right, maybe he's wrong, but I don't think that any rigorous conclusions can be drawn from the Chicago Test if those conclusions are based (no pun intended) solely on the ears of the attending AE's. I have no gripe with the AE's, and they will doubtless tell it like they hear it, but those ears (good as they are) are uncalibrated. If you're a short-arse like me you may hear a bass loss. If you're a longshanks, you may not. And there you go, another minefield.
Whatever the outcome may be, my thanks to those who made this happen, and I hope that some good will come of it.