; ### Eastman Orchestra Library Instrument  s_f_1_to_2  ###
ifelse(SFTEST,99,[dnl],[include(CSLIBDIR/Include/sf_defs)])
define([NEWPAR],9)dnl
; input: stereo ;  output: mono mix of the 2 input channels
instr sfs
SFINIT
a1,a2 soundin isfnum,p6 
SFBODY
a2 = a3*a2
a1 = a1 + a2
