Description

Generates a segmented line with user-controllable random segments.

Syntax

kout jitter2 ktotamp, kamp1, kcps1, kamp2, kcps2, kamp3, kcps3

Performance

ktotamp -- Resulting amplitude of jitter2

kamp1 -- Amplitude of the first jitter component

kcps1 -- Speed of random variation of the first jitter component (expressed in cps)

kamp2 -- Amplitude of the second jitter component

kcps2 -- Speed of random variation of the second jitter component (expressed in cps)

kamp3 -- Amplitude of the third jitter component

kcps3 -- Speed of random variation of the third jitter component (expressed in cps)

jitter2 also generates a segmented line such as jitter, but in this case the result is similar to the sum of three randi opcodes, each one with a different amplitude and frequency value (see randi for more details), that can be varied at k-rate. Different effects can be obtained by varying the input arguments.

jitter2 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 jitter2 opcode. It uses the file jitter2.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 jitter2.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

ktotamp init p4
kamp1   init .5
kcps1   init 10
kamp2   init .5
kcps2   init 2
kamp3   init .5
kcps3   init 3

kj2  jitter2 ktotamp, kamp1, kcps1, kamp2, kcps2, kamp3, kcps3
aout pluck 1, 200+kj2, 1000, 0, 1
aout dcblock aout
     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

jitter, vibr, vibrato

Credits

Author: Gabriel Maldonado

New in Version 4.15