krange -- the range of the random numbers (-krange to +krange)
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 bexprnd opcode. It uses the files bexprnd.orc and bexprnd.sco.
Example 1. Example of the bexprnd opcode.
/* bexprnd.orc */
; Initialize the global variables.
sr = 44100
kr = 4410
ksmps = 10
nchnls = 1
; Instrument #1.
instr 1
; Generate a random number between -1 and 1.
; krange = 1
i1 bexprnd 1
print i1
endin
/* bexprnd.orc */
/* bexprnd.sco */
; Play Instrument #1 for one second.
i 1 0 1
e
/* bexprnd.sco */
instr 1: i1 = 1.141