1 ardour { ["type"] = "Snippet", name = "Track Properties" }
3 function factory () return function ()
4 --- iterate over all tracks
5 for t in Session:get_tracks():iter() do
6 -- t is-a http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:Track
8 -- operate one those with "Drum" in the name
9 if (t:name ():find ("Drum")) then
11 -- print the name, and number of audio in/out
12 -- see also http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:ChanCount
13 print (t:name (), "| Audio In:", t:n_inputs ():n_audio (), "Audio Out:", t:n_outputs ():n_audio ())
15 -- get the track's http://manual.ardour.org/lua-scripting/class_reference/#ARDOUR:PresentationInfo
16 pi = t:presentation_info_ptr ()
18 -- set the track's color to orange - hex RGBA
19 pi:set_color (0xff8800ff)
21 -- phase invert the 1st channel
22 t:phase_control():set_phase_invert (1, true)
24 -- solo the track -- and only the track, not other tracks grouped with it.
26 -- Note that changing solo/mute needs to propagate implicit solo/mute.
27 -- These changes have to be done atomically, so that all
28 -- related solo/mute change simultaneously at the same time.
29 -- This can only be done from realtime-context, so we need to queue a session-rt
30 -- event using the session realtime-event dispatch mechanism:
31 Session:set_control (t:solo_control(), 1, PBD.GroupControlDisposition.NoGroup)
33 -- unmute the track, this also examplifies how one could use lists to modify
34 -- multiple controllables at the same time (they should be of the same
35 -- paramater type - e.g. mute_control() of multiple tracks, they'll all
36 -- change simultaneously in rt-context)
37 local ctrls = ARDOUR.ControlListPtr ()
38 ctrls:push_back (t:mute_control()) -- we could add more controls to change via push_back
39 Session:set_controls (ctrls, 0, PBD.GroupControlDisposition.NoGroup)
41 -- add a track comment
42 t:set_comment ("This is a Drum Track", nil)
44 -- and set the fader to -7dB == 10 ^ (0.05 * -7)
45 t:gain_control():set_value (10 ^ (0.05 * -7), PBD.GroupControlDisposition.NoGroup)