i am a scripting newbie, with only very very basic information.
ii want to be able to press a pedal on my foot controller which will smoothly fade out the audio of my looper rackspace over something like 30 seconds to a minute (i’ll figure out the time later).
surprisingly to me, there doesn’t seem to be any way to do this, there’s no plugin i can find. there’s midishaper, but it needs a note input, which i think would be a more complicated script than what i’d like to do.
so here’s what i think i need to do:
i need to define a widget (which will be controlled by my footswitch - for this i’ll create a button and give it a name) - this part i can do!
i need to create a Gain and Balance control and name it - this i can also do.
i need to create a ramp generator that will start at a value of 1 and go to zero over a specified time - this step is very confusing to me. i could do the same, i suppose wth an ADSR (and i see there is something called “StartReleasePhase”), but i’m really stuck figuring out how to do this part.
i need to trigger the generator with the widget - i see a WidgetValueChanged callback
i need to get the value of the generator to control the Gain parameter of the Gain and Balance control.
is anyone willing to help me through this? or…is there a (Mac, AU preferably) plugin somewhere that i haven’t found yet that will do this kind of fadeout for me?
var myRamp : Ramp
TRIGGER : Widget // Widget that starts the ramp
VOLUME : Widget // Widget that controls audio level
v_volume : double // Variable to get the current VOLUME level
initialization
SetGeneratorOneShot(myRamp, true)
end
on WidgetValueChanged(newValue : double) from TRIGGER
if newValue > 0.5 then
v_volume = GetWidgetValue(VOLUME)
myRamp.SetGeneratorLength(2000) // 2000 msec
SetTimersRunning(true)
myRamp.EnableGenerator(true)
end
end
on TimePassing(timeX : integer, amplitudeY : double) from myRamp
SetWidgetValue(VOLUME, v_volume*(1.0-amplitudeY))
if GetWidgetValue(VOLUME) < 0.01 then
// Reset Trigger
SetWidgetValue(TRIGGER,0.0)
end
end
Try this, you have do define an addition Midi In block (OSC Midi is fine):
var myRamp : Ramp
TRIGGER : Widget // Widget that starts the ramp
VOLUME : Widget // Widget that controls audio level
v_volume : double // Variable to get the current VOLUME level
TIM : MidiInBlock
Notes : midiMessage
Direction : Integer
initialization
SetGeneratorOneShot(myRamp, true)
Notes = MakeNoteMessage(C3, 100)
Direction = 1
end
on WidgetValueChanged(newValue : double) from TRIGGER
if newValue > 0.5 then
if Direction == 1 then
v_volume = GetWidgetValue(VOLUME)
end
myRamp.SetGeneratorLength(2000) // 2000 msec
SetTimersRunning(true)
myRamp.EnableGenerator(true)
end
end
on TimePassing(timeX : integer, amplitudeY : double) from myRamp
if Direction == 1 then
SetWidgetValue(VOLUME, v_volume*(1.0-amplitudeY))
else
SetWidgetValue(VOLUME, v_volume*amplitudeY)
end
if amplitudeY > 0.99 then
// Reset Trigger
SetWidgetValue(TRIGGER,0.0)
if Direction == 1 then
Direction = 2
else
Direction = 1
end
if Direction == 2 then
ScheduleMidiEvent(TIM, Notes, 5000)
end
end
end
on NoteOnEvent(m : NoteMessage) from TIM
Print("Hallo")
SetWidgetValue(TRIGGER, 1.0)
end
many, many thanks for this, paul! i will get this working on my rackspace, and then study it carefully to see why and how it does what it does. so much to learn…
ok…i pasted the script into the script editor for the rackspace, created a button widget and captioned it “TRIGGER” and a slider widget and captioned it “VOLUME”. the button widget responds too the footpedal, and the slider widget is controlling a Gain and Balance block before the output block.
the script compiles successfully, but also gives me a log screen that says:
The widget ‘TRIGGER’ is declared in a script but does not exist in the rackspace called ‘Big Looper’
The widget ‘VOLUME’ is declared in a script but does not exist in the rackspace called ‘Big Looper’
needless to say, it doesn’t run…
and needless to say, i already have questions, but let’s get this running first! thank you so much for your time and help.
no problem, i am using Augustus Looper by Expert Sleepers. it’s a bit old, but pretty awesome still…i have 3 instances of it in my Big Looper rackspace. it also has a second version that has 2 stereo sends and returns so you can mess with the loop, i’m thinking of setting that up with Loopback and another rackspace.
this is (for me) more soundscape style looping, not rhythmic, but you can use it for rhytmic looping as well.
so, here is my revised script, with these changes:
i made the fade 20 seconds
it does not reset the trigger (i do that with my footswitch)
at the end of the fade, it clears the loops in the 3 Augustus Looper plugins by sending a parameter #49 message to them.
var myRamp : Ramp
TRIGGER : Widget // Widget that starts the ramp
VOLUME : Widget // Widget that controls audio level
v_volume : double // Variable to get the current VOLUME level
CTRLOOP, LOOP1, LOOP2 : PluginBlock
initialization
SetGeneratorOneShot(myRamp, true)
end
on WidgetValueChanged(newValue : double) from TRIGGER
if newValue > 0.5 then
v_volume = GetWidgetValue(VOLUME)
myRamp.SetGeneratorLength(20000) // 20 sec
SetTimersRunning(true)
myRamp.EnableGenerator(true)
end
if newValue < 0.5 then
SetWidgetValue(VOLUME,0.7)
end
end
on TimePassing(timeX : integer, amplitudeY : double) from myRamp
SetWidgetValue(VOLUME, v_volume*(1.0-amplitudeY))
if GetWidgetValue(VOLUME) < 0.01 then
// Clear Loops
SetParameter(CTRLOOP,49,1.0)
SetParameter(LOOP1,49,1.0)
SetParameter(LOOP2,49,1.0)
end
end
i suspect i don’t have to have 3 separate “SetParameter” statements, right? is this not what arrays are for? how would i set that up so i can address all 3 instances of Augustus Looper at once? i tried declaring:
also - what is the difference between setting a scripting name for a widget in the edit view (as keyman illustrated above), and setting it in the Connections view using the right-click Osc/GScript item? they are obviously different things with different results, but what exactly is the difference? thanks.
and how do you paste your scripts in like that, paul, so they are formatted and look like scripts?
Not sure I understand this question. In the former you’re setting a script name for a widget and in the latter you’re setting a script name for a plugin block
