Enum Interpolation 

pub enum Interpolation {
    Linear,
    Allpass,
    Cubic,
}

Interpolation mode for delay line read pointer.

Different delay types require different interpolation characteristics:

• Linear: simple, low CPU, slight HF loss — suitable for digital delays
• Allpass: sub-sample accuracy without HF loss — best for tape/analog feel
• Cubic: smooth with low aliasing — good general purpose

Variants

Linear

Linear interpolation: y = y0*(1-f) + y1*f Simple and cheap. Causes slight HF roll-off at short delays.

Allpass

First-order allpass interpolation for sub-sample accuracy. Preserves magnitude response while providing smooth fractional delay. Best for modulated delays (tape echo, chorus) — no zipper noise.

Cubic

Cubic Hermite interpolation: 4-point, smooth transitions. Good frequency response, moderate CPU cost.

Trait Implementations

impl Clone for Interpolation

fn clone(&self) -> Interpolation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Interpolation

impl Debug for Interpolation

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

Formats the value using the given formatter.

impl Eq for Interpolation

impl PartialEq for Interpolation

fn eq(&self, other: &Interpolation) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Interpolation