Struct ChromaDesc

pub struct ChromaDesc { /* private fields */ }

General object holding the chroma descriptor.

Current chroma descriptors are interval features (see https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf).

Contrary to the other descriptors that can be used with streaming without consequences, this one performs better if the full song is used at once.

Implementations

impl ChromaDesc

pub const WINDOW_SIZE: usize = 8_192usize

pub fn new(sample_rate: u32, n_chroma: u32) -> Self

pub fn do_(&mut self, signal: &[f32]) -> AnalysisResult<()>

Compute and store the chroma of a signal.

Passing a full song here once instead of streaming smaller parts of the song will greatly improve accuracy.

pub fn get_value(&mut self) -> Vec<Feature>

Get the song’s interval features.

Return the 6 pitch class set categories, as well as the major, minor, diminished and augmented triads.

See this paper https://speech.di.uoa.gr/ICMC-SMC-2014/images/VOL_2/1461.pdf for more information (“Timbre-invariant Audio Features for Style Analysis of Classical Music”).

Trait Implementations

impl Clone for ChromaDesc

fn clone(&self) -> ChromaDesc

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ChromaDesc

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

Formats the value using the given formatter.