jitter

Generates a segmented line whose segments are randomly generated.

Syntax

kout jitter kamp, kcpsMin, kcpsMax

Performance

kamp -- Amplitude of jitter deviation

kcpsMin -- Minimum speed of random frequency variations (expressed in cps)

kcpsMax -- Maximum speed of random frequency variations (expressed in cps)

jitter generates a segmented line whose segments are randomly generated inside the +kamp and -kamp interval. Duration of each segment is a random value generated according to kcpsmin and kcpsmax values.

jitter can be used to make more natural and “analog-sounding” some static, dull sound. For best results, it is suggested to keep its amplitude moderate.

Examples

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

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac     ;;;realtime audio out
;-iadc    ;;;uncomment -iadc if realtime audio input is needed too
; For Non-realtime ouput leave only the line below:
; -o jitter.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

sr = 44100
ksmps = 32
nchnls = 2
0dbfs  = 1

instr 1

kamp    init p4
kcpsmin init 4
kcpsmax init 8

kj2  jitter kamp, kcpsmin, kcpsmax
aout pluck 1, 200+kj2, 1000, 0, 1
aout dcblock aout       ;remove DC
     outs aout, aout

endin
</CsInstruments>
<CsScore>

i 1 0 15 2      ;a bit jitter
i 1 8 15 10     ;some more
i 1 16 15 20    ;lots more
e
</CsScore>
</CsoundSynthesizer>

See also

Random (Noise) Generators

Credits

Author: Gabriel Maldonado

New in Version 4.15