desc:1 semiWave

slider1:sw=0<-1,1,1>semiWave

in_pin:left input
in_pin:right input
out_pin:left output
out_pin:right output

@init


@slider


@block


@sample
sw == -1 ? (spl0=min(spl0,0);spl1=min(spl1,0));
sw ==  1 ? (spl0=max(spl0,0);spl1=max(spl1,0))
