random — Generates a controlled pseudo-random number series between min and max values.
kmin -- minimum range limit
kmax -- maximum range limit
The random opcode is similar to linrand and trirand but sometimes I [Gabriel Maldonado] find it more convenient because allows the user to set arbitrary minimum and maximum values.
Here is an example of the random opcode. It uses the file random.csd.
Example 737. Example of the random 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 RT audio input is needed too ; For Non-realtime ouput leave only the line below: ; -o random.wav -W ;;; for file output any platform </CsOptions> <CsInstruments> sr = 44100 ksmps = 32 nchnls = 2 0dbfs = 1 instr 1 ;same values every time krnd random 100, 1000 printk .5, krnd ; look aout oscili 0.8, 440+krnd, 1 ; & listen outs aout, aout endin instr 2 ;different values every time seed 0 krnd random 100, 1000 ; seed from system clock printk .5, krnd ; look aout oscili 0.8, 440+krnd, 1 ; & listen outs aout, aout endin </CsInstruments> <CsScore> f 1 0 16384 10 1 ;sine wave. i 1 0 1 i 2 2 1 e </CsScore> </CsoundSynthesizer>
Its output should include lines like:
i 1 time 0.00067: 894.58566
i 1 time 0.50000: 748.44281
i 1 time 1.00000: 328.29916
WARNING: Seeding from current time 1656666052
i 2 time 2.00067: 690.71466
i 2 time 2.50000: 459.42445
i 2 time 3.00000: 100.85594