Trait Filter

Source

pub trait Filter<T>: ParameterizedAlgorithm<T, Params = FilterParams>where
    T: Transcendental,{
    // Provided methods
    fn set_cutoff(&mut self, cutoff: f32) { ... }
    fn cutoff(&self) -> f32 { ... }
    fn set_q(&mut self, q: f32) { ... }
    fn q(&self) -> f32 { ... }
    fn set_gain_db(&mut self, gain: f32) { ... }
    fn gain_db(&self) -> f32 { ... }
    fn filter_type(&self) -> FilterType { ... }
}

Expand description

Common trait for all filters

Provides a unified interface for controlling filter parameters. All concrete filters implement this trait via ParameterizedAlgorithm with Params = FilterParams.

§Example

use rill_core_dsp::filters::*;
use rill_core::Transcendental;
use rill_core::time::ClockTick;
use rill_core::traits::ActionContext;

fn process_filter<T: Transcendental>(filter: &mut dyn Filter<T>, input: T) -> T {
    filter.set_cutoff(1000.0);
    filter.set_q(0.707);
    let mut output = [T::ZERO];
    let tick = ClockTick::default();
    let ctx = ActionContext::new(&tick);
    filter.process(Some(&[input]), &mut output).unwrap();
    output[0]
}