Script to get value of a fader track and apply it on item volume take (on track)

[Gaett]

Hi Reapers,
I please need your help in reaper scripting (.lua).
I would like to apply/copy the fader's dB value (of a selected track) on the item volume (active item?) which is on that track. And then, reset the fader at 0 (unity).
If possible, if many tracks are selected, apply that action on each item on respective tracks and reset all faders at 0.
I have a good starting point, thanks to TeddyTheToad. https://forum.cockos.com/showthread.php?t=181565 but here this is something a bit different.

May I have your help please ? Here is a piece of the code that works with obe selected track and one (any) selected take only :

n = 0 -- loop var init
fx = "volume" -- fx name to target. change if you want it to taget a different fx
while(reaper.GetSelectedTrack(0,n) ~= nil) do --loop runs untill no more selected tracks
selTrack = reaper.GetSelectedTrack(0,n) -- gets the number of a track
volume = reaper.GetMediaTrackInfo_Value(selTrack,"D_VOL") -- gets fader level
item = reaper.GetSelectedMediaItem(0,0)
take = reaper.GetActiveTake(item)
reaper.SetMediaItemTakeInfo_Value(take,"D_VOL",vol ume)

--
--
reaper.SetMediaTrackInfo_Value(selTrack, "D_VOL", 1.00) --resets fader val to 0db
n = n+1 -- move to next selected track
end

Thanks in advance,
Gaetan

[ErBird]

Originally Posted by Gaett

I would like to apply/copy the fader's dB value (of a selected track) on the item volume (active item?) which is on that track.

The question mark is throwing me off. You do want the volume transfer to apply only to active/selected items or to every item on the track? Please clarify.

[Fabian]

Originally Posted by Gaett

n = 0 -- loop var init
fx = "volume" -- fx name to target. change if you want it to taget a different fx
while(reaper.GetSelectedTrack(0,n) ~= nil) do --loop runs untill no more selected tracks
  selTrack = reaper.GetSelectedTrack(0,n) -- gets the number of a track
  volume = reaper.GetMediaTrackInfo_Value(selTrack,"D_VOL") -- gets fader level
  item = reaper.GetSelectedMediaItem(0,0)
  take = reaper.GetActiveTake(item)
  reaper.SetMediaItemTakeInfo_Value(take,"D_VOL",volume)

--
--
  reaper.SetMediaTrackInfo_Value(selTrack, "D_VOL", 1.00) --resets fader val to 0db
  n = n+1 -- move to next selected track
end

Are you saying that only a single item is handled? Here:

item = reaper.GetSelectedMediaItem(0,0)

it seems you select the same media item again and again, and then assign and re-assign the track fader value of the successive selected tracks. Note that selecting a track (on the TCP) does not necessarily select that track's media items.

I think you need to loop through the selected media items and for each select its parent track:

MediaTrack track = reaper.GetMediaItemTake_Track(MediaItem_Take take)

to get the track fader value to assign to the active take volume.

[X-Raym]

I have this script already :


X-Raym_Offset selected items volume by their track fader value.lua


just plug Reset track volume action after it.

[Gaett]

Originally Posted by ErBird

The question mark is throwing me off. You do want the volume transfer to apply only to active/selected items or to every item on the track? Please clarify.

To clarify,I have a take on each track. I want to transfer the volume fader's value on each respected item (item volume/gain knob).
ex :
Track 1 : fader -20dB / Item on that track : 0dB (item volume knob)
Track 2 : fader -12dB / Item on that track : 0dB (item volume knob)
...
Track n

to become :
Track 1 : fader 0dB / Item on that track : -20dB (item volume knob)
Track 2 : fader 0dB / Item on that track : -12dB (item volume knob)

[Gaett]

Originally Posted by X-Raym

I have this script already :


X-Raym_Offset selected items volume by their track fader value.lua


just plug Reset track volume action after it.

Thanks ! Nice !!!