Struct BiquadFilter 

pub struct BiquadFilter {
    pub mode: FilterMode,
    pub cutoff_hz: f32,
    pub resonance: f32,
    pub gain_db: f32,
    /* private fields */
}

Biquad (second-order IIR) filter — used for low-pass, high-pass, resonant, etc.

Fields

mode: FilterMode

cutoff_hz: f32

resonance: f32

gain_db: f32

Implementations

impl BiquadFilter

pub fn new(mode: FilterMode, cutoff_hz: f32, resonance: f32) -> Self

pub fn low_pass(cutoff_hz: f32, q: f32) -> Self

pub fn high_pass(cutoff_hz: f32, q: f32) -> Self

pub fn band_pass(cutoff_hz: f32, q: f32) -> Self

pub fn notch(cutoff_hz: f32, q: f32) -> Self

pub fn update_coefficients(&mut self)

Update filter coefficients after changing mode/cutoff/resonance.

pub fn set_cutoff(&mut self, hz: f32)

Set cutoff frequency and update coefficients.

pub fn set_resonance(&mut self, q: f32)

Set resonance (Q) and update coefficients.

pub fn tick(&mut self, input: f32) -> f32

Process one sample.

pub fn reset(&mut self)

Reset filter state (useful between notes).

Trait Implementations

impl Clone for BiquadFilter

fn clone(&self) -> BiquadFilter

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for BiquadFilter

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.