Description

Prints a new value every time a control variable changes.

Syntax

printk2 kvar [, inumspaces] [, inamed]

Initialization

inumspaces (optional, default=0) -- number of space characters printed before the value of kvar.

inamed (optional, default=0) -- if non zero print the name of the kvar as well as the value.

Performance

kvar -- signal to be printed

Derived from Robin Whittle's printk, prints a new value of kvar each time kvar changes. Useful for monitoring MIDI control changes when using sliders.

	Warning
	WARNING! Do not use this opcode with normal, continuously variant k-signals, because it can hang the computer, as the rate of printing is too fast.

Examples

Here is an example of the printk2 opcode. It uses the file printk2.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 printk2.wav -W ;;; for file output any platform
</CsOptions>
<CsInstruments>

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

instr 1

kval    randomh 0, 1.2, 20		;choose between 0 and 1.2
if kval >0 && kval<=.5 then		;3 possible outcomes
	kval = 1			
elseif kval >.5 && kval<=1 then
	kval =2
elseif kval >1 then
	kval =3
endif

printk2 kval				;print value when it changes
asig    poscil .7, 440*kval, 1
        outs asig, asig

endin
</CsInstruments>
<CsScore>
f1 0 16384 10 1

i 1 0 5
e
</CsScore>
</CsoundSynthesizer>

Its output should include lines like these:

 i1     0.00000
 i1     3.00000
 i1     1.00000
 i1     3.00000
 i1     1.00000
 i1     2.00000
 i1     3.00000
.....
      

See Also

printk and printks

Credits

New in Csound version 3.48

named option new in 6.11