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In Reply to: RE: Which is the reason MQA only works for files and not CD-type discs posted by John Atkinson on October 28, 2016 at 07:45:40
Hi John,
Please don't take this as an attack or anything like that. I see this forum as an open discussion.
In terms of what is mentioned about the noise floor, I think this is where MQA's definition of "lossless" and the computer world's term for it differs. And I'd argue that if someone is going to use the terms "lossless" and "compression," they should be using the computer world's.
In computers, lossless compression is, well, a ZIP file or similar. Take the file, compress it, then uncompress it and bring it all back again.
When I hear things like it depends on the noise floor, I think they're using it as "analog recording lossless." So, for example, if 15 bits are used, then 9 bits (out of 24) are just noise, then if we only retain the 15 bits, say, we're "lossless" because the remaining 9 didn't matter anyway.
Do you agree with how I'm thinking they mean that MQA is lossless?
Doug
Follow Ups:
> Do you agree with how I'm thinking they mean that MQA is lossless?
No.
John Atkinson
Editor, Stereophile
So do you think they mean lossless in the computer-world sense? You can take the original, say, 24/192 or higher file, MQA compress it, then uncompress that same file and get it all back again? Like millions do with ZIP files daily? (Or, in the music-file world, FLAC or ALAC or similar?)
Doug
it is too clever for most to understand!
13DoW
assertions within the model cannot be understood until they have been subjected to audience testing with a large sample size.
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