trighold
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## trighold

trighold — Timed trigger, holds a value for a given time

## Description

Plugin opcode in scugens.

Timed trigger. Port of Supercollider's Trig ugen. When a nonpositive to positive transition occurs at the input, trighold outputs the level of the triggering input for the specified duration, otherwise it outputs zero.

## Syntax

    aout trighold ain, kdur

    kout trighold 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.

## Examples

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

Example 909. Example of the trighold 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 = trighold(km, 0.5)
      printks "t=%f  km=%f    ktrig=%f\n", 0.01, kt, km, ktrig
    endin

    instr 2
      am = upsamp(metro(1))
      aenv = trighold(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

lag, metro, mpulse trigger

## Credits

By: Eduardo Moguillansky 2017

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