LowLevelSpectralExtractor

standard mode | Extractors category

Inputs

  • signal (vector_real) - the audio input signal

Outputs

  • barkbands (vector_vector_real) - spectral energy at each bark band. See BarkBands alogithm

  • barkbands_kurtosis (vector_real) - kurtosis from bark bands. See DistributionShape algorithm documentation

  • barkbands_skewness (vector_real) - skewness from bark bands. See DistributionShape algorithm documentation

  • barkbands_spread (vector_real) - spread from barkbands. See DistributionShape algorithm documentation

  • hfc (vector_real) - See HFC algorithm documentation

  • mfcc (vector_vector_real) - See MFCC algorithm documentation

  • pitch (vector_real) - See PitchYinFFT algorithm documentation

  • pitch_instantaneous_confidence (vector_real) - See PitchYinFFT algorithm documentation

  • pitch_salience (vector_real) - See PitchSalience algorithm documentation

  • silence_rate_20dB (vector_real) - See SilenceRate algorithm documentation

  • silence_rate_30dB (vector_real) - See SilenceRate algorithm documentation

  • silence_rate_60dB (vector_real) - See SilenceRate algorithm documentation

  • spectral_complexity (vector_real) - See Spectral algorithm documentation

  • spectral_crest (vector_real) - See Crest algorithm documentation

  • spectral_decrease (vector_real) - See Decrease algorithm documentation

  • spectral_energy (vector_real) - See Energy algorithm documentation

  • spectral_energyband_low (vector_real) - Energy in band (20,150] Hz. See EnergyBand algorithm documentation

  • spectral_energyband_middle_low (vector_real) - Energy in band (150,800] Hz.See EnergyBand algorithm documentation

  • spectral_energyband_middle_high (vector_real) - Energy in band (800,4000] Hz. See EnergyBand algorithm documentation

  • spectral_energyband_high (vector_real) - Energy in band (4000,20000] Hz. See EnergyBand algorithm documentation

  • spectral_flatness_db (vector_real) - See flatnessDB algorithm documentation

  • spectral_flux (vector_real) - See Flux algorithm documentation

  • spectral_rms (vector_real) - See RMS algorithm documentation

  • spectral_rolloff (vector_real) - See RollOff algorithm documentation

  • spectral_strongpeak (vector_real) - See StrongPeak algorithm documentation

  • zerocrossingrate (vector_real) - See ZeroCrossingRate algorithm documentation

  • inharmonicity (vector_real) - See Inharmonicity algorithm documentation

  • tristimulus (vector_vector_real) - See Tristimulus algorithm documentation

  • oddtoevenharmonicenergyratio (vector_real) - See OddToEvenHarmonicEnergyRatio algorithm documentation

Parameters

  • frameSize (integer ∈ (0, ∞), default = 2048) :

    the frame size for computing low level features

  • hopSize (integer ∈ (0, ∞), default = 1024) :

    the hop size for computing low level features

  • sampleRate (real ∈ (0, ∞), default = 44100) :

    the audio sampling rate

Description

This algorithm extracts all low-level spectral features, which do not require an equal-loudness filter for their computation, from an audio signal

Source code

See also

LowLevelSpectralExtractor (streaming)