Struct MelSpectrogram 

pub struct MelSpectrogram {
    pub data: Array2<f32>,
    pub config: SpectrogramConfig,
    pub duration_ms: u64,
}

A computed mel spectrogram.

Fields

data: Array2<f32>

Spectrogram data (n_mels x n_frames).

config: SpectrogramConfig

Configuration used to compute this spectrogram.

duration_ms: u64

Duration of the source audio in milliseconds.

Implementations

impl MelSpectrogram

pub fn compute( samples: &[f32], config: SpectrogramConfig, ) -> Result<Self, AudioError>

Computes a mel spectrogram from audio samples.

Arguments

• samples - Mono audio samples
• config - Spectrogram configuration

Returns

A MelSpectrogram with shape (n_mels, n_frames).

pub fn shape(&self) -> (usize, usize)

Returns the shape as (n_mels, n_frames).

pub fn n_mels(&self) -> usize

Returns the number of mel bands.

pub fn n_frames(&self) -> usize

Returns the number of time frames.

pub fn slice_frames(&self, start: usize, end: usize) -> Array2<f32>

Extracts a time slice of the spectrogram.

pub fn normalize(&mut self)

Normalizes the spectrogram to zero mean and unit variance per mel band.

pub fn to_vec(&self) -> Vec<f32>

Returns the raw data as a flat vector (row-major order).

Trait Implementations

impl Clone for MelSpectrogram

fn clone(&self) -> MelSpectrogram

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MelSpectrogram

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

Formats the value using the given formatter.