+=

+= — Performs add and assignment.

Syntax

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

Description

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 32. Example of the plusbecomes opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

<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

assign,

Credits

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

New in version 6.00