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+=

Performs add and assignment.

Syntax

ares += xarg
ires += iarg
kres += karg
table [ kval] += karg

Performs an add and assign.

Initialization

+= - Adds the value of the expression iarg (karg, xarg) into the named result. This provides a means of saving an evaluated result for later use.

Examples

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

Example of the plusbecomes opcode.
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<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 reverb.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

ga1 init 0 

instr 1 

asig poscil .2, cpspch(p4), 1 
     outs asig, asig 

ga1  += asig     ;add direct signal to global reverb

endin

instr 99        ;(highest instr number executed last)

arev reverb ga1, 1.5
     outs arev, arev 

ga1  = 0        ;clear
endin


</CsInstruments>
<CsScore>
f 1 0 128 10 1  ;sine

i 1 0 0.1 7.00  ;short sounds
i 1 1 0.1 8.02
i 1 2 0.1 8.04
i 1 3 0.1 8.06

i 99 0 6        ;reverb runs for 6 seconds
e
</CsScore>
</CsoundSynthesizer>

See also

Initialization and Reinitialization

Credits

Author: John ffitch
University of Bath, and Codemist Ltd.
Bath, UK
2013

New in version 6.00