trandom — Generates a controlled pseudo-random number series between min and max values according to a trigger.
Generates a controlled pseudo-random number series between min and max values at k-rate whenever the trigger parameter is different to 0.
ktrig -- trigger (opcode produces a new random number whenever this value is not 0.
kmin -- minimum range limit
kmax -- maximum range limit
trandom is almost identical to random opcode, except trandom updates its output with a new random value only when the ktrig argument is triggered (i.e. whenever it is not zero).
Here is an example of the trandom opcode. Play trandom.csd
Example 1110. Example of the trandom 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 trandom.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 seed 0 ; every run time different values instr 1 kmin init 0 ;random number between 0 and 220 kmax init 220 ktrig = p4 k1 trandom ktrig, kmin, kmax printk2 k1 ;print when k1 changes asig poscil .4, 220+k1, 1 ;if triggered, add random values to frequency outs asig, asig endin </CsInstruments> <CsScore> f1 0 4096 10 1 i 1 0 2 0 ;not triggered i 1 + 2 1 ;triggered e </CsScore> </CsoundSynthesizer>