sc_trig

sc_trig — Timed trigger

Description

Plugin opcode in scugens.

Timed trigger. Port of Supercollider's Trig ugen

Syntax

aout sc_trig ain, kdur
kout sc_trig kin, kdur

Initialization

initialvalue If given, sets the internal state. Default=0

Performance

ain -- Trigger. Trigger can be any signal. A trigger happens when the signal changes from non-positive to positive.

kdur -- Duration of the trigger in seconds.

When a nonpositive to positive transition occurs at the input, Trig outputs the level of the triggering input for the specified duration, otherwise it outputs zero.

Examples

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

Example 880. Example of the sc_trig opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

<CsoundSynthesizer>
<CsOptions>
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 128
nchnls = 2
0dbfs = 1.0

instr 1
  km = metro(1)
  kt timeinsts
  ktrig = sc_trig(km, 0.5)
  printks "t=%f  km=%f    ktrig=%f\n", 0.01, kt, km, ktrig
endin

instr 2
  am = upsamp(metro(1))
  aenv = sc_trig(am, 0.5)
  asig pinker
  outch 1, asig*aenv
  outch 2, asig
endin

</CsInstruments>
<CsScore>
i 1 0 10
i 2 0 10

</CsScore>
</CsoundSynthesizer>


See Also

sc_lag, metro, mpulse trigger

Credits

By: Eduardo Moguillansky 2017