Struct StateVariableFilter 

pub struct StateVariableFilter { /* private fields */ }

Simultaneous low/high/band/notch/peak state-variable filter.

Implementations

impl StateVariableFilter

pub fn new(sample_rate_hz: f32) -> Self

Creates a filter for sample_rate_hz, defaulting to a 200 Hz cutoff and 0.5 resonance.

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

Sets the cutoff frequency in Hz. Clamped to (0, sample_rate_hz / 3] to keep the double-sampled topology stable.

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

Sets the resonance, clamped to [0.0, 1.0] to guarantee stability.

pub fn set_drive(&mut self, drive: f32)

Sets the drive, which shapes how hard the resonant peak saturates. Typical range 0.0..=1.0.

pub fn process(&mut self, input: f32)

Processes one input sample, updating all five simultaneous outputs.

pub fn low(&self) -> f32

Lowpass output from the most recent process call.

pub fn high(&self) -> f32

Highpass output from the most recent process call.

pub fn band(&self) -> f32

Bandpass output from the most recent process call.

pub fn notch(&self) -> f32

Notch (band-stop) output from the most recent process call.

pub fn peak(&self) -> f32

Peak output from the most recent process call.

pub fn reset(&mut self)

Resets the filter’s internal state. Cutoff, resonance, and drive are left unchanged.

Trait Implementations

impl Clone for StateVariableFilter

fn clone(&self) -> StateVariableFilter

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StateVariableFilter

impl Debug for StateVariableFilter

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

Formats the value using the given formatter.