Enum MelNorm 

#[non_exhaustive]
pub enum MelNorm {
    None,
    Slaney,
    L1,
    L2,
}

Mel filterbank normalization strategy.

Determines how the triangular mel filters are normalized after construction.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

None

No normalization (triangular filters with peak = 1.0).

This is the default and fastest option.

Slaney

Slaney-style area normalization (librosa default).

Each mel filter is divided by its bandwidth in Hz: 2.0 / (f_max - f_min). This ensures constant energy per mel band regardless of bandwidth.

Use this for compatibility with librosa’s default behavior.

L1

L1 normalization (sum of weights = 1.0).

Each mel filter’s weights are divided by their sum. Useful when you want each filter to act as a weighted average.

L2

L2 normalization (Euclidean norm = 1.0).

Each mel filter’s weights are divided by their L2 norm. Provides unit-norm filters in the L2 sense.

Trait Implementations

impl Clone for MelNorm

fn clone(&self) -> MelNorm

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for MelNorm

impl Debug for MelNorm

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

Formats the value using the given formatter.

impl Default for MelNorm

fn default() -> MelNorm

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MelNorm

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MelNorm

impl From<MelNorm> for PyMelNorm

fn from(norm: MelNorm) -> Self

Converts to this type from the input type.

impl From<PyMelNorm> for MelNorm

fn from(py_norm: PyMelNorm) -> Self

Converts to this type from the input type.

impl PartialEq for MelNorm

fn eq(&self, other: &MelNorm) -> 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 Serialize for MelNorm

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for MelNorm