Struct idsp::Lowpass

pub struct Lowpass<const N: usize> { /* fields omitted */ }

Arbitrary order, high dynamic range, wide coefficient range, lowpass filter implementation. DC gain is 1.

Type argument N is the filter order.

Implementations

impl<const N: usize> Lowpass<N>

pub fn update(&mut self, x: i32, k: u8) -> i32

Update the filter with a new sample.

Args

• x: Input data. Needs 1 bit headroom but will saturate cleanly beyond that.
• k: Log2 time constant, 1..=31.

Return

Filtered output y.

Trait Implementations

impl<const N: usize> Clone for Lowpass<N>

fn clone(&self) -> Lowpass<N>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<const N: usize> Default for Lowpass<N>

fn default() -> Self

Returns the “default value” for a type.