K2-Script: change_pan doesn't work correctly

Hi guys,
I've made a script that repeats a played note a couple of times,
each time the panning is changed from left to right.
Lets say when I repeat the note 3 times, the panning is
set to -1000, 0 and then 1000 (I've verified this with the 'message'
function right before the call of 'change_pan').

But instead of playing left -> middle -> right it plays
left -> middle -> middle

Has anyone succesfully done different pannings in one 'on note'
event?

Tom

 

Hi Tom,
I think you got the last parameter to change_pan wrong.
relative-bit=0 <--> absolute
relative-bit=1 <--> relative

I think the script manual's explanation of the relative-bit would be more clear if they replaced the wording "actual pan value" with "current pan value". After having just skimmed the documentation I made the same mistake as you did

Cheers,
Nils

 

Hi Nils,
actually that was the first thing I've thought of, but no matter
how I set this bit, the result is the same
I've even tried a polyphonic variable just in case the 'on note'
event is triggered from within the script to not re-initialze
it again...

Anyway, thanks for the answer.
Tom

 

Hi again Tom,
sorry for pointing out the obvious.

Have you tried a really simple script like this one:

Code:

on note
  change_pan($EVENT_ID, -1000, 0)
  wait(500000)
  change_pan($EVENT_ID, 0, 0)
  wait(500000)
  change_pan($EVENT_ID, 1000, 0)
end on

This script does the job for me.
Could it be a problem specific to a certain K2 instrument?

Best,
Nils

 

Nils, thanks for your help.
Could you try out the following script on your system?
Thanks in advance.
Tom

Code:

on note
  change_pan($EVENT_ID, -1000, 0)
  play_note($EVENT_NOTE, $EVENT_VELOCITY, 0, -1)
  wait(1000000)
  change_pan($EVENT_ID, 0, 0)
  play_note($EVENT_NOTE, $EVENT_VELOCITY, 0, -1)
  wait(1000000)
  change_pan($EVENT_ID, 1000, 0)
  play_note($EVENT_NOTE, $EVENT_VELOCITY, 0, -1)
end on

 

Hi again Tom,
now I see. The $EVENT_ID variable represents the note that triggered the 'on init' callback. Even if you generate your own notes with play_note, $EVENT_ID will still refer to the same tone. So your script only modifies the panning of the triggering note, not the ones that you generate.

The play_note function returns a new note ID for each generated note, so if you want to change such a note you have to save the return value in a variable and use that instead of $EVENT_ID, like this:

Code:

$my_id := play_note($EVENT_NOTE, $EVENT_VELOCITY, 0, -1)
change_pan($my_id, 1000, 0)

Best,
Nils

 

Hi Nils,
thanks for this information, I didn't know that play_note
returns the new event id (it's not mentioned in the manuals
reference, so I thought the id would stay the same).

Now it works perfectly

Thanks a lot.
Tom