On Feb 16, 2014, at 14:26 27, Dan Mills <[email protected]> wrote:
> Looks like I might be once again working in broadcast in the not too > distant future (Mostly SDI video toys rather then audio this time), so > I thought I had better re up, life happened as it so often does…. Hey Dan, welcome back! > Fred, would you take a patch to make the normalization use the R.128 > loudness estimation method rather then the rather simple minded > measure it uses at present, it should make for much more even loudness > across cuts? The spec does not look hard to implement, but it would > really benefit from the meter having a Loudness unit mode as well as > VU. > This would among other things make for much better leveling between > compressed music and speech cuts. > > I think I can cook up a measurement code that can be included in the > source so removing the library dependencies issue. It sounds good. Does this mean that we’d wind up with compliant meters as well? That’d be sweet. > I figure an extra entry in the cuts table with the computed LU value, > and probably a target level in the groups table so that different > things can be trimmed to slightly different average loudness levels > (Naughty, but someone is going to want to go there). Is there a reason we shouldn’t keep the current normalization target scheme (a system-wide default, with the ability to override that on a one-off basis)? Cheers! |-------------------------------------------------------------------------| | Frederick F. Gleason, Jr. | Chief Developer | | | Paravel Systems | |-------------------------------------------------------------------------| | A room without books is like a body without a soul. | | -- Cicero | |-------------------------------------------------------------------------| _______________________________________________ Rivendell-dev mailing list [email protected] http://caspian.paravelsystems.com/mailman/listinfo/rivendell-dev
