There's a project called bs1770gain which normalizes audio to a set
lufs, loudness.
Marius
On 11/2/18 4:27 PM, Andy Higginson wrote:
I seem to remember some discussion on using EBU R128 loudness
measuring for normalization of audio. It was mentioned a couple of
years ago and I think someone on this list had found some open source
code to enable this monitoring. Has anything further happened on this?
---- On Thu, 01 Nov 2018 15:43:07 +0000 *Fred Gleason
<fr...@paravelsystems.com>* wrote ----
On Nov 1, 2018, at 11:27, Cowboy <c...@cwf1.com
<mailto:c...@cwf1.com>> wrote:
*THIS* is why 12 db or more of headroom is a good idea.
Personally, I would not have chosen 13, because I prefer even
numbers, but any
"reasonable" number should be fine.
There’s been lots of debate about this over the years. Many
American vendors have standardized with -12, whereas our friends
over the Atlantic seem to favor -18 or even -20. In Rivendell,
the ‘reference level' is actually -16 dBFS (that being the ‘0’
point on Rivendell’s audio meters). That number was chosen mostly
because a certain proprietary automation system to which I had
access at the time (ca. 2002) used it as well, thus making it easy
to use audio from that system for test cases.
Cheers!
|----------------------------------------------------------------------|
| Frederick F. Gleason, Jr. | Chief Developer |
| | Paravel Systems |
|----------------------------------------------------------------------|
| A successful tool is one that was used to do something undreamed
of |
| by its author. |
| -- S.C. Johnson |
|----------------------------------------------------------------------|
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