Description

Initializes MIDI controller ictlno with ivalue

Syntax

initc7 ichan, ictlno, ivalue

Initialization

ichan -- MIDI channel (1-16)

ictlno -- controller number (0-127)

ivalue -- floating point value (must be within 0 to 1)

Performance

initc7 can be used together with both midic7 and ctrl7 opcodes for initializing the first controller's value. ivalue argument must be set with a number within 0 to 1. An error occurs if it is not. Use the following formula to set ivalue according with midic7 and ctrl7 min and max range:

Examples

Here is an example of the initc7 opcode. It uses the file initc7.csd.

<CsoundSynthesizer>
<CsOptions>
; Select audio/midi flags here according to platform
-odac   -M0  ;;;realtime audio I/O with MIDI in
;-iadc    ;;;uncomment -iadc if RT audio input is needed too
</CsOptions>
<CsInstruments>

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

instr 1	; expects MIDI controller input on channel 1
; run and move your midi controller to see result

imax = 1
imin = 0
ichan = 1 
ictlno = 7
 
	initc7	1, 7, 1			; start at max. volume
kamp	ctrl7	ichan, ictlno, imin, imax	; controller 7
	printk2	kamp
asig	oscil	kamp, 220, 1
	outs	asig, asig

endin

</CsInstruments>
<CsScore>
f 1 0 4096 10 1

i1 0 20

e
</CsScore>
</CsoundSynthesizer>

See Also

ctrl7, ctrl14, ctrl21, ctrlinit, initc14, initc21, midic7, midic14, midic21

Credits

New in Csound version 3.47

Thanks goes to Rasmus Ekman for pointing out the correct MIDI channel and controller number ranges.