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HarmonicAnalyzer

proof_engine::dsp::analysis

Struct HarmonicAnalyzer

pub struct HarmonicAnalyzer;

Expand description

Harmonic analysis: fundamentals, overtones, THD.

Implementations§

impl HarmonicAnalyzer

pub fn fundamental(spectrum: &Spectrum, sample_rate: f32) -> f32

Detect the fundamental frequency from a spectrum.

pub fn harmonics( spectrum: &Spectrum, fundamental_hz: f32, sample_rate: f32, n: usize, ) -> Vec<f32>

Get amplitudes of the first n harmonics of fundamental_hz.

pub fn thd(harmonics: &[f32]) -> f32

Total Harmonic Distortion: THD = sqrt(sum of h2..hN squared) / h1.

pub fn thd_percent(harmonics: &[f32]) -> f32

Total Harmonic Distortion in percent.

pub fn inharmonicity( spectrum: &Spectrum, fundamental_hz: f32, sample_rate: f32, n: usize, ) -> f32

Inharmonicity: deviation of harmonic frequencies from ideal integer multiples.

pub fn spectral_centroid(spectrum: &Spectrum, sample_rate: f32) -> f32

Spectral centroid as a timbre measure.

pub fn odd_even_ratio(harmonics: &[f32]) -> f32

Odd/even harmonic ratio (timbre indicator).

Auto Trait Implementations§

impl Freeze for HarmonicAnalyzer

impl RefUnwindSafe for HarmonicAnalyzer

impl Send for HarmonicAnalyzer

impl Sync for HarmonicAnalyzer

impl Unpin for HarmonicAnalyzer

impl UnsafeUnpin for HarmonicAnalyzer

impl UnwindSafe for HarmonicAnalyzer

Blanket Implementations§

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where T: 'static + ?Sized,

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fn from(t: T) -> T

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impl<S> FromSample<S> for S

fn from_sample_(s: S) -> S

impl<T> Instrument for T

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fn into(self) -> U

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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn to_sample_(self) -> U

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