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.
-
@doragasu Nearly no other modern protocol has this problem, because almost everything else is DC-balanced to well above audio frequencies.
@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. -
@marcan42 (e.g. CS5381). The trick is either using a ground plane (lowest inductance) or using separate grounds, joined ONLY on the ADC pin.
End of conversation
New conversation -
-
-
@marcan42 With a careful design, that problem can also be avoided. E.g. nowadays most high SNR (120+dB) ADCs have just only a ground pin. -
@doragasu If the grounds are joined, a loop back to the PC (e.g. via mixer to audio jack) makes USB data current return through audio wiring - Show replies
New conversation -
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.