internal

Documentation

Index

• Constants
• func CartesianToPolar(complex []complex128) (magnitude []float64, phase []float64)
• func ComputeSpectrumWeights(frameSize int, sampleRate float64, curve WeightingCurve) []float64
• func PrepareSpectrum(frame []float64) []float64
• type WeightingCurve

Constants

const CurveSize = 34

Functions

func CartesianToPolar

func CartesianToPolar(complex []complex128) (magnitude []float64, phase []float64)

CartesianToPolar converts a slice of complex numbers to polar coordinates, returning the magnitude and phase as separate slices.

func ComputeSpectrumWeights

func ComputeSpectrumWeights(frameSize int, sampleRate float64, curve WeightingCurve) []float64

ComputeSpectrumWeights calculates the frequency weighting for a given frame size and sample rate based on the specified weighting curve.

func PrepareSpectrum

func PrepareSpectrum(frame []float64) []float64

PrepareSpectrum applies a Hann window to the input frame and computes the FFT, making the result suitable for pitch detection with the YIN algorithm.

Types

type WeightingCurve

type WeightingCurve [CurveSize]float32