Macro effect_algorithm 

macro_rules! effect_algorithm {
    (
        $(#[$struct_meta:meta])*
        $vis:vis struct $name:ident<$($generic:ident: $bound:path),+> {
            params: {
                $(
                    $(#[$param_meta:meta])*
                    $param_name:ident : $param_type:ty = $param_default:expr
                ),* $(,)?
            },
            state: {
                $(
                    $(#[$state_meta:meta])*
                    $state_name:ident : $state_type:ty = $state_default:expr
                ),* $(,)?
            },
            wet: $wet_default:expr,
            process: $process:expr
        }
    ) => { ... };
}

Macro for creating an effect with dry/wet mix

Example

use rill_core_dsp::effect_algorithm;
use rill_core::math::Transcendental;

effect_algorithm! {
    /// Delay effect
    #[derive(Debug, Clone, Copy)]
    pub struct Delay<T: Transcendental> {
        params: {
            time: T = T::from_f32(0.3),
            feedback: T = T::from_f32(0.5),
        },
        state: {
            buffer: [T; 1024] = [T::ZERO; 1024],
            pos: usize = 0,
        },
        wet: T::from_f32(0.5),
        process: |this, input| {
            // Process effect
            input
        }
    }
}