[Csnd] Skipping all scheduled events?

The Csound Mailinglist
1

Hi!

Does anyone know a way to programatically skip all scheduled events?
Say I have a bunch of events scheduled for the future, via scoreline, schedule and related opcodes and plans changed and those events are no longer wanted, how can i “turn them off”?

I tried insertig an “x” statememnt via scoreline_i but that doesn’t seem to work.

Any ideas?

Cheers

Max

-odac

sr = 44100
0dbfs = 1
nchnls = 1
ksmps = 2

instr 1
scoreline_i {{
x
}}
endin

instr 2

a1 poscil .1, 330
out a1
endin

i1 1 1

i2 3 1

2

hi max -

as far as i understand, none of the score statements work in scoreline_i because they are part of the score preprocessor (which is not present in the actual csound language). so "x" etc will not work.

i seem to remember that in csound 7 there will be an opcode to undo scheduled events (i don't remember the name). but in csound 6 it is not, as far as i know.

ciao -
  joachim

3

Hi!

turnoff3 turns off also future events, present also in Csound 6.18, if I remember correctly.
You need to call it on every instrument thought that may play.

Tarmo

R, 18. aprill 2025 20:02 joachim heintz <jh@joachimheintz.de> kirjutas:

hi max -

as far as i understand, none of the score statements work in scoreline_i
because they are part of the score preprocessor (which is not present in
the actual csound language). so “x” etc will not work.

i seem to remember that in csound 7 there will be an opcode to undo
scheduled events (i don’t remember the name). but in csound 6 it is
not, as far as i know.

ciao -
joachim

Hi!

Does anyone know a way to programatically skip all scheduled events?
Say I have a bunch of events scheduled for the future, via scoreline,
schedule and related opcodes and plans changed and those events are no
longer wanted, how can i “turn them off”?

I tried insertig an “x” statememnt via scoreline_i but that doesn’t seem
to work.

Any ideas?

Cheers

Max

-odac

sr = 44100
0dbfs = 1
nchnls = 1
ksmps = 2

instr 1
scoreline_i {{
x
}}
endin

instr 2

a1 poscil .1, 330
out a1
endin

i1 1 1
i2 3 1

Prof. Maximilian Marcoll
Studio Director
Studio for Electroacoustic Music (SEAM)
University of Music/Franz Liszt/Weimar
Bauhaus University Weimar

http://seam.hfm-weimar.de/ <http://seam.hfm-weimar.de/>

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4

Oh that’s great, thank you!!
Thanks for the explanation, Joachim, I should have known better that to try with a preprocessor routine.

Cheers!
M

5

ah right --- it is there since csound 6.16 =)
thanks tarmo -
  j

6

It’s a bit more nuanced actually.

All events sent to Csound via the score section, csoundEvent (csound 7 api) or csoundReadScore() (csound 6 api) before the engine start are “score events”: you can rewind them etc.

All events sent to Csound from anywhere after the engine started, are realtime events, kept on a separate list. As Tarmo said turnoff3 can act on these, but certain score commands may not work. Some preprocessing is possible with readscore.

I started investigating the possibility of turning an event off in the scheduled realtime list with matching parameters.

Prof. Victor Lazzarini
Maynooth University
Ireland

7

An opcode has been added to Csound 7

8

nice