I wrote:
Dan Mills wrote:
The key is that every stage has to have a known
calibration, which is
actually fairly common with professional cards.
Okay :) I don't know professional cards for home recording myself and
the professional studios I know have external VU meters. For my Envy24
based sound card I guess the converters aren't accurate, but even with
this I might be wrong.
Pardon, the converters might be fine ;). The stages behind/ before the
converters, the amps, might have too much tolerance to realise a VU
meter that is exact.