IIR_INV_COEF
3, IIR_INV_COEF, IIR_INV_COEF, IIR_NO_NEED, IIR_NO_NEED,
5, 3, IIR_INV_COEF, 2, IIR_NO_NEED, IIR_NO_NEED,
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, 3, IIR_INV_COEF,
IIR_INV_COEF, IIR_NO_NEED, IIR_NO_NEED, IIR_NO_NEED,
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, 5, 3,
IIR_INV_COEF, 1, IIR_NO_NEED, IIR_NO_NEED,
7, IIR_INV_COEF, IIR_INV_COEF, 6, 4, 3, 2, 0, IIR_NO_NEED,
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, 5, 3, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, 7, IIR_INV_COEF,
IIR_INV_COEF, 6, 4, 3, 0,
IIR_RATIOVER, IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, 3, IIR_INV_COEF, IIR_NO_NEED, IIR_NO_NEED
IIR_RATIOVER, IIR_RATIOVER, IIR_INV_COEF, IIR_INV_COEF,
IIR_INV_COEF, IIR_INV_COEF, 7, IIR_INV_COEF,
IIR_INV_COEF, 4, 3, 0, IIR_NO_NEED
} else if (k == IIR_INV_COEF) {