Script request: normalise all items to LUFS of loudest/quietest item

[Hippocratic Mastering]

Hi,

I'm interested in a script that could normalise all items to the LUFS (integrated) level of the loudest or quietest selected item. I'm happy to pay someone a little for their time.

Or, if this script already exists somewhere or there is some way to make a custom action that accomplishes this, please let me know.

Tom

[Jonas Ekstrom]

Originally Posted by Hippocratic Mastering

Hi,

I'm interested in a script that could normalise all items to the LUFS (integrated) level of the loudest or quietest selected item. I'm happy to pay someone a little for their time.

Or, if this script already exists somewhere or there is some way to make a custom action that accomplishes this, please let me know.

Tom

Should work with the Sws extension.

[Hippocratic Mastering]

Yes, I have the SWS extensions but, unless I'm missing something, there's no way to perform this task with a single action - I have to normalise all the items to a common value (say -20 LUFS) and then manually bring everything back to the original level of the loudest/quietest item.

I'm after a script that can leave the loudest/quietest item untouched (it doesn't really matter to me whether it's the loudest or quietest, but a choice would be nice) and bring everything else to that level, without any extra thought or action.

[Jonas Ekstrom]

Originally Posted by Hippocratic Mastering

Yes, I have the SWS extensions but, unless I'm missing something, there's no way to perform this task with a single action - I have to normalise all the items to a common value (say -20 LUFS) and then manually bring everything back to the original level of the loudest/quietest item.

I'm after a script that can leave the loudest/quietest item untouched (it doesn't really matter to me whether it's the loudest or quietest, but a choice would be nice) and bring everything else to that level, without any extra thought or action.

True. Would be cool to do this for sure.
Don´t know if sws can output data of lufs levels. Someone brilliant here will certainly come along with a cool solution.

[heda]

Yes this is possible with the latest SWS extension and a script or two, one for maximum and one for minimum. I've been recently doing some coding for LUFS normalizations

[amagalma]

Originally Posted by Hippocratic Mastering

Hi,

I'm interested in a script that could normalise all items to the LUFS (integrated) level of the loudest or quietest selected item. I'm happy to pay someone a little for their time.

Or, if this script already exists somewhere or there is some way to make a custom action that accomplishes this, please let me know.

Tom

All items in project or all selected items?
All takes of items or just active take?

I guess the second for both questions.. but just to be sure...

[amagalma]

Normalize all selected items' active takes to the LUFS of the loudest one

local reaper, math = reaper, math

local cnt = reaper.CountSelectedMediaItems( 0 )
local LUFS = -1000
local takes = {}
if cnt > 1 then
  for i = 0, cnt-1 do
    local selitem = reaper.GetSelectedMediaItem( 0, i )
    local acttake = reaper.GetActiveTake(selitem)
    if acttake then
      local takevolenv = 20*math.log(reaper.GetMediaItemTakeInfo_Value( acttake, "D_VOL"), 10)
      local _, lufsIntegrated = reaper.NF_AnalyzeTakeLoudness_IntegratedOnly( acttake )
      takes[i+1] = {take = acttake, lufs = lufsIntegrated - takevolenv }
      if lufsIntegrated > LUFS then LUFS = lufsIntegrated end
    end
  end
  for i = 1, #takes do
    if takes[i].lufs ~= LUFS then
      reaper.SetMediaItemTakeInfo_Value(takes[i].take, "D_VOL", 10^((LUFS - takes[i].lufs)/20) )
    end
  end
  reaper.UpdateArrange()
end
reaper.Undo_OnStateChange( "Normalize all selected items to the LUFS of the loudest one" )

[Jonas Ekstrom]

Originally Posted by amagalma

Normalize all selected items' active takes to the LUFS of the loudest one

local reaper, math = reaper, math

local cnt = reaper.CountSelectedMediaItems( 0 )
local LUFS = -1000
local takes = {}
if cnt > 1 then
  for i = 0, cnt-1 do
    local selitem = reaper.GetSelectedMediaItem( 0, i )
    local acttake = reaper.GetActiveTake(selitem)
    if acttake then
      local takevolenv = 20*math.log(reaper.GetMediaItemTakeInfo_Value( acttake, "D_VOL"), 10)
      local _, lufsIntegrated = reaper.NF_AnalyzeTakeLoudness_IntegratedOnly( acttake )
      takes[i+1] = {take = acttake, lufs = lufsIntegrated - takevolenv }
      if lufsIntegrated > LUFS then LUFS = lufsIntegrated end
    end
  end
  for i = 1, #takes do
    if takes[i].lufs ~= LUFS then
      reaper.SetMediaItemTakeInfo_Value(takes[i].take, "D_VOL", 10^((LUFS - takes[i].lufs)/20) )
    end
  end
  reaper.UpdateArrange()
end
reaper.Undo_OnStateChange( "Normalize all selected items to the LUFS of the loudest one" )

Awesome!
But how do i run this code?

[nofish]

Show action list, click on ReaScript: New... button

Give it a name in the "New script" save dialog. (Make sure it's saved as .lua filetype)

Paste the code to the ReaScript Development Environment window that comes up, press Ctrl + S to save it. Now you can run the script from the action list.