The Alternative Csound Reference Manual
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# vibr

vibr -- Easier-to-use user-controllable vibrato.

## Description

Easier-to-use user-controllable vibrato.

## Syntax

kout vibr kAverageAmp, kAverageFreq, ifn

## Initialization

ifn -- Number of vibrato table. It normally contains a sine or a triangle wave.

## Performance

kAverageAmp -- Average amplitude value of vibrato

kAverageFreq -- Average frequency value of vibrato (in cps)

vibr is an easier-to-use version of vibrato. It has the same generation-engine of vibrato, but the parameters corresponding to missing input arguments are hard-coded to default values.

## Examples

Here is an example of the vibr opcode. It uses the files vibr.orc and vibr.sco.

Example 1. Example of the vibr opcode.

    /* vibr.orc */
    ; Initialize the global variables.
    sr = 44100
    kr = 4410
    ksmps = 10
    nchnls = 1

    ; Instrument #1.
    instr 1
      ; Create a vibrato waveform.
      kaverageamp init 7500
      kaveragefreq init 5
      ifn = 1
      kvamp vibr kaverageamp, kaveragefreq, ifn

      ; Generate a tone including the vibrato.
      a1 oscili 10000+kvamp, 440, 2

      out a1
    endin
    /* vibr.orc */

    /* vibr.sco */
    ; Table #1, a sine wave for the vibrato.
    f 1 0 256 10 1
    ; Table #1, a sine wave for the oscillator.
    f 2 0 16384 10 1

    ; Play Instrument #1 for 2 seconds.
    i 1 0 2
    e
    /* vibr.sco */

## See Also

jitter, jitter2, vibrato

## Credits

Author: Gabriel Maldonado

Example written by Kevin Conder.

New in Version 4.15

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