This has been interesting. We looked at bit depth, what about sampling rate?
I can try something with sampling rate. But while I'm sure of 0-filling LSBs, in order to make the files the same size. I'd have to take a higher sampling rate, and downsample it, and then upsample it again, and that may not be as clear cut.
I'll play around, and see if there are any extremely obvious tell-tale signs that would make the test inaccurate.
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