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In Reply to: RE: One thing has to be done to make this a fair comparison. posted by Analog Scott on July 28, 2015 at 07:08:49
In my opinion, both vinyl copies should sound the same to the vast majority of us over 50-years old. At least in my case, I do not hear any difference between a vinyl source and its 24/96 digital conversion in my own system. I've done this test many times using my Alesis Masterlink as a 24/96 digital bottleneck by placing it in its record mode and switching my line stage between source and tape when listening to a vinyl record. I can switch remotely at my listening position and there is no audible difference that I can detect. Of course, I'm 67-years old now and I can't hear much past 10-kHz. However, I have a very resolving system and I've tested others who failed to detect any difference. There is nothing scientific about these tests -- just sighted A/B tests -- but there is no audible difference that I can detect.
Now, before you argue the point, I realize this is not exactly what you are talking about. However, based on these A/B test results, it is my opinion that there would be no audible difference between a vinyl record made from an analog master tape versus a vinyl record made from a 24/96 digital copy of the same analog master tape. At least, I don't think I would be able to hear the difference.
Best regards,
John Elison
Follow Ups:
I expect they would be identical. But that was why in my first post I was saying it is important that the analog feed to the cutting lathe should be the same feed that the 24/96 copy be made from. It's analog tape. It will be a little different every time you play back the tape. That could lead to a false positive. Also there could be variations in plating and certainly in each individual pressing. But IMO the 24/96 A/D D/A conversion should be transparent.
> I was saying it is important that the analog feed to the cutting lathe should be the same feed that the 24/96 copy be made from.
That should be easy to accomplish. Simply connect the cutting lathe and the 24/96 recorder in parallel so each is receiving its signal from the same tape play.
> IMO the 24/96 A/D D/A conversion should be transparent.
I agree! That has been my experience in my own system.
Best regards,
John Elison
I think hi res digital has come so far that it might actually be advantageous to do hi res copies of analog tapes and use that as the cutting source. There is an art to picking the right tape deck, making sure it is in perfect working condition and lining up the heads and setting everything up so as to get the best signal possible off of the analog tape. If you only have to do this once all the better. A hi res digital copy being more robust and more reliable in playback will allow a mastering engineer more freedom to do what they want to do in terms of mastering moves when cutting the lacquer.
I think vinyl enthusiasts need to move past their phobia of all things digital. Hopefully this experiment will actually happen and the point will be made.
And I say this as someone who prefers the sound of vinyl and analog tape to all digital media.
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