fix edge sample value (-1 and +1) overflow
@@ -84,7 +84,7 @@ func Update() error {
if val > +1 {
val = +1
}
- valInt16 := int16(val * (1 << 15))
+ valInt16 := int16(val * (1<<15 - 1))
low := byte(valInt16 % (1 << 8))
high := byte(valInt16 / (1 << 8))
buf[i*4+c*2+0] = low
