What is integrator based biquad filter?

An integrator-based biquad filter is a type of digital filter that uses two integrators to implement a second-order filter response. It is typically characterized by its ability to achieve low distortion and high precision while processing signals. This filter structure is commonly used in audio processing and control systems due to its stability and efficient use of computational resources. By manipulating the coefficients, integrator-based biquad filters can be designed for various filter types, including low-pass, high-pass, band-pass, and notch filters.