----- Original Message ----- > From: "Cowboy" <[email protected]>
> On Friday 16 August 2013 11:07:39 am Rob Landry wrote: > > > > What is the reason for normalizing to -13dBFS? > > 0 db FS in radio leaves 20 db or so headroom. Terminology is a bitch, ain't it? ;-) Anything labeled dBFS is *automatically* a digital level measurement, and 0dBFS is *full scale*; there is no headroom at all. The customary 0 VU point in an analog to digital capture is -20dBFS for precisely that reason. The *real* problem is people who don't understand what they're doing, when transferring and leave, say, audio files or video clips that are 20dB below 0VU... and I get that a *LOT*; it's why the Android MX Player video player and MPlayer2 both have a way to boost the playback volume above 100%. > -13 db FS digital leaves 13.0 db headroom. >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
