Description

This opcode outputs a trigger signal that informs when any one of its k-rate arguments has changed. Useful with valuator widgets or MIDI controllers.

Syntax

ktrig changed kvar1 [, kvar2,..., kvarN]

Performance

ktrig - Outputs a value of 1 when any of the k-rate signals has changed, otherwise outputs 0.

kvar1 [, kvar2,..., kvarN] - k-rate variables to watch for changes.

Examples

Here is an example of the changed opcode. It uses the file changed.csd.

<CsoundSynthesizer>
<CsOptions>
-odac -B441 -b441
</CsOptions>
<CsInstruments>

sr     =        44100
kr     =        100
ksmps  =        441
nchnls =        2

       instr    1
ksig oscil 2,0.5,1
kint = int(ksig)
ktrig changed kint
printk 0.2, kint
printk2 ktrig
	endin

</CsInstruments>
<CsScore>
f 1 0 1024 10 1
i 1 0 20


</CsScore>
</CsoundSynthesizer>

Credits

Written by Gabriel Maldonado.

Example written by Andrés Cabrera.

New in Csound 5 (Previously available only on CsoundAV)