Is it odd that I can instantly spot that horrible 1kHz buzz caused by cheap USB soundcards even in professional videos? USB sucks for audio.
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@marcan42 You can go self powered and isolate the grounds. Even going bus powered, careful power filtering+isolation can remove the noise.
@doragasu Nearly no other modern protocol has this problem, because almost everything else is DC-balanced to well above audio frequencies.
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@doragasu Worse, USB's single-ended signaling puts bus power (can be LF-filtered easily) and data current return (cannot) on the same pin. -
@doragasu USB3 actually fixes this (braindead signaling wouldn't compete with other modern/sane standards) but nobody uses USB3 for audio. - Show replies
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