----- Original Message ----- > From: "Robert" <[email protected]>
> The card may well be set to deliver +4 out although I would question > the dbm because the actual level and impedance may not meet that standard. > > BUT > > Rivendell is set up to run at -13 so '0' on the Rivendell meter is 13 > db below the +4 output = -10 peak when all the gains on the sound card > are set at maximum. Well, either Robert's misunderstood something here, or Fred has. I'm not betting on Fred. :-) As I understand it, Rivendell has *set it's 0vu analog point* at *-13dbFS*, a digital measurement. The result of that is that if you have a 1khz sine wave recording at a level where the digital meters in Rivendell show 0vu, then the level coming out of your card should be 0db away from whatever the nominal level for that interface is, -10dBV or +4dDB (I think I have those right)(which are substantially more than 14dB apart from each other, since they have different reference points, as we discussed last week here, on this very list :-). The implication of "Rivendell's 0VU point is -13dBFS" is *that's what it sets the A/D and D/A converter zero points at. The "-13dB" part itself merely means that it allows that much headroom *after the A/D converter without clipping*. Or, at least, that's how this is all *supposed* to work. Fred? Could you jump in here, and clarify? Cheers, -- jra -- Jay R. Ashworth Baylink [email protected] Designer The Things I Think RFC 2100 Ashworth & Associates http://baylink.pitas.com 2000 Land Rover DII St Petersburg FL USA #natog +1 727 647 1274 _______________________________________________ Rivendell-dev mailing list [email protected] http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
