On Tue, 8 Nov 2016 13:38:50 -0800 Bill Putney <[email protected]> wrote:
> 0 dB in Rivendell is 0 dBFS (Full Scale) the highest value that can > be represented digitally. 0 dBFS is +18 dBVU (or +20 if you're > SMTPE). So the default normalization Rivendell uses (-13 dBFS) is > already +5 dBVU. Sort of ...... 0 dbVU is based on having an average reading meter, so there is no real correspondence to dBFS. The +18 or +20 correspondence is what you will see with a tone, but when you play music or voice, peaks go much higher and don't show on the meter. Rivendell normalization just looks for the biggest peak and scales, so I usually set it to "-3", which roughly leaves alone the levels on stuff that is well recorded, and lowers the level of poor quality high level recordings that are clipped. It might occasionally being up the level of something recorded low, but rarely. It seems to me that peak normalization of -13 doesn't make sense, because it is just throwing away 13 db of level with no real benefit. There is a real loss when playing on a cheap sound card that has output level too low to begin with, and maybe also has a noise level higher than it should be. For a specific program, how about turn normalize off, and manually set the level. I believe for this you can turn it up, but probably the best is to just leave it alone. To repeat what Bill said in different words ... Normalize to + anything would result in clipping. _______________________________________________ Rivendell-dev mailing list [email protected] http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
