Feature extraction

librosa.feature contains routines for computing spectral, tonal, rhythmic features from audio signals.

Utility functions for manipulating and inverting features are also provided.

• Spectral features
  • librosa.feature.chroma_stft
  • librosa.feature.chroma_cqt
  • librosa.feature.chroma_cens
  • librosa.feature.chroma_vqt
  • librosa.feature.tonnetz
  • librosa.feature.melspectrogram
  • librosa.feature.mfcc
  • librosa.feature.spectral_centroid
  • librosa.feature.spectral_bandwidth
  • librosa.feature.spectral_contrast
  • librosa.feature.spectral_flatness
  • librosa.feature.spectral_rolloff
  • librosa.feature.poly_features
  • librosa.feature.rms
  • librosa.feature.zero_crossing_rate
• Rhythm features
  • librosa.feature.tempo
  • librosa.feature.tempogram
  • librosa.feature.fourier_tempogram
  • librosa.feature.hybrid_tempogram
  • librosa.feature.tempogram_ratio
  • librosa.feature.metrogram
• Feature manipulation
  • librosa.feature.delta
  • librosa.feature.stack_memory
• Feature inversion
  • librosa.feature.inverse.mel_to_stft
  • librosa.feature.inverse.mel_to_audio
  • librosa.feature.inverse.mfcc_to_mel
  • librosa.feature.inverse.mfcc_to_audio