- * feedback2_factor and feedback3_factor are the factors used for the
- * multiplications that are respectively performed in the second and third
- * feedback paths of the loop.
- *
- * Unless you know what you are doing, you should set these as follow:
- *
- * o = 2 * M_PI * bandwidth * period_in_seconds
- * feedback2_factor = sqrt(2) * o
- * feedback3_factor = o * o
- *