HarmonicModelAnal¶

standard 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

Source code¶

C++ source code

C++ header file