HarmonicModelAnal

streaming mode | Synthesis category

Inputs

  • fft (vector_complex) - the input fft
  • pitch (real) - external pitch input [Hz].

Outputs

  • frequencies (vector_real) - the frequencies of the sinusoidal peaks [Hz]
  • magnitudes (vector_real) - the magnitudes of the sinusoidal peaks
  • phases (vector_real) - the phases of the sinusoidal peaks

Parameters

  • freqDevOffset (real ∈ (0, ∞), default = 20) :
    minimum frequency deviation at 0Hz
  • freqDevSlope (real ∈ (-∞, ∞), default = 0.01) :
    slope increase of minimum frequency deviation
  • harmDevSlope (real ∈ (-∞, ∞), default = 0.01) :
    slope increase of minimum frequency deviation
  • hopSize (integer ∈ [1, ∞), default = 512) :
    the hop size between frames
  • magnitudeThreshold (real ∈ (-∞, ∞), default = -74) :
    peaks below this given threshold are not outputted
  • maxFrequency (real ∈ (0, ∞), default = 5000) :
    the maximum frequency of the F0 [Hz]
  • maxPeaks (integer ∈ [1, ∞), default = 100) :
    the maximum number of returned peaks
  • maxnSines (integer ∈ (0, ∞), default = 100) :
    maximum number of sines per frame
  • minFrequency (real ∈ (0, ∞), default = 20) :
    the minimum frequency of the F0 [Hz]
  • nHarmonics (integer ∈ (0, ∞), default = 100) :
    maximum number of harmonics per frame
  • orderBy (string ∈ {frequency, magnitude}, default = frequency) :
    the ordering type of the outputted peaks (ascending by frequency or descending by magnitude)
  • sampleRate (real ∈ (0, ∞), default = 44100) :
    the sampling rate of the audio signal [Hz]

Description

This algorithm computes the harmonic model analysis.

This algorithm uses SineModelAnal and keeps only the harmonic partials. It receives an external pitch value as input. You can use PitchYinFft algorithm to compute the pitch per frame.

References:
https://github.com/MTG/sms-tools http://mtg.upf.edu/technologies/sms

Streaming algorithms

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