kalpha -- controls the spread from zero (big kalpha = big spread). Outputs both positive and negative numbers.
For more detailed explanation of these distributions, see:
C. Dodge - T.A. Jerse 1985. Computer music. Schirmer books. pp.265 - 286
D. Lorrain. A panoply of stochastic cannons. In C. Roads, ed. 1989. Music machine . Cambridge, Massachusetts: MIT press, pp. 351 - 379.
Here is an example of the cauchy opcode. It uses the files cauchy.orc and cauchy.sco.
Example 57. Example of the cauchy opcode.
/* cauchy.orc */ ; Initialize the global variables. sr = 44100 kr = 4410 ksmps = 10 nchnls = 1 ; Instrument #1. instr 1 ; Generate a random number, spread from 10. ; kalpha = 10 i1 cauchy 10 print i1 endin /* cauchy.orc */
/* cauchy.sco */ ; Play Instrument #1 for one second. i 1 0 1 e /* cauchy.sco */
Its output should include lines like:
instr 1: i1 = -0.106