function filtfilt(univector<T, Tag> &, const iir_params<T, Itag> &) biquad¶

template <typename T, univector_tag Tag, size_t Itag>
KFR_FUNCTION void filtfilt(univector<T, Tag>& arr, const iir_params<T, Itag>& params)

Applies forward and backward filtering to the input array using the given IIR filter parameters.

This function performs zero-phase filtering by first applying the IIR filter in the forward direction and then applying it again in the reverse direction. The result is a filtered signal with minimal phase distortion.

Template parameters

T	The data type of the elements in the input array.
Tag	The tag type associated with the input array.
Itag	The tag type associated with the IIR filter parameters.

Parameters

arr	The input array to be filtered. This array is modified in-place to store the filtered result.
params	The IIR filter parameters used for filtering the input array.