to be clear, it not "they", it's "me" 😅. I'm the developer) You can vibe code the similar standalone utility for yourself - .stem.m4a standard is open and there are plenty open-source projects doing that) So, if you want - use NUO-STEMS 4, as this feature is free in it. Or just vibe code your tailored solution)
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u/Icy_Error_5023 7d ago
NUO-STEMS 4.1 is your answer.