A second order filter section (biquad) UGen. Filter coefficients are given directly rather than calculated for you. The formula is equivalent to:
y(n) = b0 * x(n) + b1 * x(n-1) + b2 * x(n-2) - a1 * y(n-1) - a2 * y(n-2)
where x is in, and y is the output. Note the naming and signum of the coefficients
differs from SuperCollider's SOS.
- Companion:
- object