Originally Posted by Matt Finley
My point is not intended to be excellent. Your test is reasonable. I am merely asking if the results might be different if we used a source file that didn’t start with the life already compressed out of it.
Matt, I have no idea if the results would be different or not. And I don't have the experience to know what to do if the results are different. I'm just searching for a full-bodied solution to this problem.

If you can propose an uncompressed song to serve as Test File #2, perfect. You could extract the bass stem from the compressed file (Test File #1, supplied above) and an uncompressed file (Test File #2), with your version of SMP. I don't know how to identify an uncompressed file or how to measure its level of "compressionness". So that would be a rabbit hole for me. The majority of songs I work with are YouTube videos converted to MP3 format. I know this is not ideal from an audio quality standpoint but the number of songs available is literally staggering.

But no matter what the results are, I (and thousands of others) will have to deal with compressed files in the real world.
Are you proposing that an added step of uncompressing compressed files would be required? Is that even possible? If so, the nature of that would need to be established so to maintain apples-apples comparisons.

PS> Shouldn't an AI trained on compressed files be able to handle compressed files?


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For me there’s no better place in the band than to have one leg in the harmony world and the other in the percussive. Thank you Paul Tutmarc and Leo Fender.