outkc — Sends MIDI controller messages at k-rate.
kchn -- MIDI channel number (1-16)
knum -- controller number (0-127 for example 1 = ModWheel; 2 = BreathControl etc.)
kvalue -- floating point value
kmin -- minimum floating point value (converted in MIDI integer value 0)
kmax -- maximum floating point value (converted in MIDI integer value 127 (7 bit))
outkc (k-rate MIDI controller output) sends controller messages to MIDI OUT device. It works only with MIDI instruments which recognize them. It can drive a different value of a parameter for each note currently active.
It can scale the k-value floating-point argument according to the kmin and kmax values. For example: set kmin = 1.0 and kmax = 2.0. When the kvalue argument receives a 2.0 value, the opcode will send a 127 value to the MIDI OUT device. When the kvalue argument receives a 1.0 value, it will send a 0 value. k-rate opcodes send a message each time the MIDI converted value of argument kvalue changes.
Here is an example of the outkc opcode. It uses the file outkc.csd.
Example 707. Example of the outkc 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 -Q1 -M0 ;;;realtime audio out and midi in and out ;-iadc ;;;uncomment -iadc if realtime audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o outkc.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 instr 1 ikey notnum ivel veloc kcut linseg 100, .5, 20 ;vary controller in .5 second kbrt = int(kcut) ;whole numbers only outkc 1, 74, kbrt, 0, 127 ;controller 74 (= brightness) midion 1, ikey, ivel ;of external synth endin </CsInstruments> <CsScore> f0 30 ;runs 30 seconds e </CsScore> </CsoundSynthesizer>