Steve's right. The answer to your second question is that there are a few ways to tackle "loudness consistency". First is the simplest: Gain change. Louder or lower by deciBels. Next is Normalize, which is Gain Change as well, with a specific analysis as Steve mentioned. Third is Compression. This analyzes audio coming in, and takes anything over a specified threshold and clamps down on it by a specified ratio. So if your audio is coming in at -12 and your threshold is -20, anything above -20 will get squashed down closer to -20 and how much squashing will be set by the Ratio (2:1 means if it's over the threshold by 2 dB, the Compressor will clamp that down so that it's over the threshold by only 1 dB). Then the Compressor has something after the process called Makeup Gain, which is a gain change added to the now-compressed signal, applied to the whole (not just the threshold). It is worth playing around with, and trust your ears above anything else.
On Thu, Apr 3, 2014 at 5:20 PM, Steve Hullfish <steve4lists@veralith.com> wrote:
I could be wrong about this, but here's my take on Normalization:
Avid analysis ALL of the peaks in a given segment on which it is dropped and finds the highest peak. It then sets that peak to the Normalized level that you choose - could be -4 db, could be 0... whatever you want. I like my highest peaks to be at about -4. Then it moves the volume of the rest of the clip down relatively. If you've get pretty even levels, Normalization is a great thing. But if there are huge peaks, then it will set those properly and all of the rest of your levels will be really low.You will also get different audio levels if you break a clip up into a bunch of pieces and apply Normalize to them, because it finds the highest peak in each clip and adjusts to it. But if you left it "whole" then it would only find the ONE highest peak and normalize to that, making probably the whole clip lower in volume than if you broke it up.Jim Feeley can hopefully correct me if I'm wrong.SteveOn Apr 3, 2014, at 4:10 PM, Lou Wirth <loutv@mindspring.com> wrote:Can someone tell technically me what Normalize does in the audio sweet? I know it pumps the sound but if you use the clip with the same settings on the same track, the volume greatly changes based on the duration of the track. Just wondering what the best Audio sweet plug in to for low audio levels.
thanks
Lou
Lou Wirth Productions
500Tamal Plaza, Suite 522
Corte Madera, CA 94925
www.louwirth.com
415-924-9411p
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