Enum Window 

pub enum Window {
    Hann,
    BlackmanHarris,
    Rectangular,
}

An analysis window. Every window is periodic: its N samples are the first N of a symmetric window of length N + 1, as spectral analysis expects. The symmetric form shifts every bin slightly.

Variants

Hann

Periodic Hann, w[n] = 0.5 - 0.5 cos(2 pi n / N). Main lobe 4 bins null to null, -3 dB width 1.44 bins. The default for analysis.

BlackmanHarris

Periodic four-term Blackman-Harris, 0.35875 - 0.48829 cos(2 pi n / N) + 0.14128 cos(4 pi n / N) - 0.01168 cos(6 pi n / N). Lower side lobes than Hann, a wider main lobe.

Rectangular

All ones. Only as a baseline: its frequency estimates are an order of magnitude worse than Hann’s.

Implementations

impl Window

pub fn samples(self, len: usize) -> Vec<f64>

Returns the N window samples.

Trait Implementations

impl Clone for Window

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Window

impl Debug for Window

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

Formats the value using the given formatter.

impl Eq for Window

impl Hash for Window

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Window

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Window