wiring_plan could hand the mic Voicemeeter Input and the loopback
Voicemeeter Aux Input — two strips of the same internal mixer, i.e. a
digital feedback loop with no acoustic path to break it, because
leftover() never asked virtualish() and the exclusion list only knew
"cable" and the Steam Speakers. Now every VoiceMeeter or generically
"virtual" render is excluded from loopback, and the last-resort tier
refuses anything virtual: a box with only mixer endpoints gets
loopback=None, honest like the cable-only case.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
enricobuehlerandClaude Fable 5
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