Examples

Science

• Harmonicity Metrics Computation on MNE Epochs File
• Peaks extraction methods
  • Retrieving frequency information from simulated signals using the biotuner
  • Peaks functions (see the doc)
  • Fixed
  • FOOOF
  • Empirical Mode Decomposition
  • Harmonic recurrence
  • Endogeneous Inter-Modulation Components
  • Effect of noise on peaks detection
• Harmonicity metrics
  • Harmonic similarity
  • Inter-harmonic concordance
  • Euler Gradus Suavitatis
  • Sub-harmonic tension
• From Spectral Peaks to Harmonic Spectrum Analysis
  • Relation between harmonicity and phase-coupling
• Biotuner Paper Design and Implementation Examples
  • Figure 2. Comparative analysis of different metrics evaluated across frequency pairs from unison to octave.
  • Figure 3 (pairs). Correlation Matrix for sets of 2 peaks
  • Figure 3 (triplets). Correlation Matrix for sets of 3 peaks
  • Figure 4. Time-Resolved Harmonicity using instantaneous frequencies for three different types of signals
  • Figure 5. Identification of spectral chords using time-resolved harmonicity
  • Figure 6. Comparison of Normalized Dissonance and Harmonic Entropy Across Different Sets of Harmonics.
  • Figure 8. Visualization of Euclidean rhythms with varying maximal denominators
  • Figure 8. Harmonic Spectrum
• Biotuner Toolbox Paper Results Figures
  • Figure 6. Performance analysis of different peak extraction methods
  • Figure 7. Harmonicity on Simulated EEG
  • Figure 8. Subject-level T-statistics comparing wakefulness to different sleep stages
  • Figure 9a. Transitional Harmony in I-IV-V-I progression
  • Figure 9b. Smoothed transitional harmony for ecg simulated signals
  • Figure 9c. Distribution of transitional harmony values
  • Figure 10. Transitional harmony on simulated EEG
  • Figure 11. Harmonic Connectivity

Music

Tuning

• Constructing musical tunings with biosignals
  • Table of content
  • 1. Spectral peaks extraction
  • 2. Deriving tuning from peaks ratios
  • 3. Dissonance curve
  • 4. Harmonic entropy
  • 5. Classical tuning creation
  • 5.3. Scale from generator interval
  • 6. Scale reduction
  • 7. Scale from multiple time series
  • 8. Exporting scale in scala format
  • 9. Plotting consonance matrix for a specific scale
  • 10. Computing scale metrics
  • 11. Visualizing ratios with Lissajous curves
  • 12. Listening to scales
• Deriving spectral chords from biosignals
  • Spectral chords from spectral centroid
  • Spectral chords from instantaneous frequencies
  • Listening to spectral chords
  • Exporting spectral chords as MIDI files

Rhythm

• Constructing euclidian rhythms from biotunings
  • Deriving euclidian rhythms from a series of ratios
  • Finding consonant euclidian rhythms from a set of frequency ratios
  • Visualizing euclidean biorhythms

Coupling

• Phase-Amplitude Coupling
  • Deriving tunings from PAC information
  • Deriving euclidian rhythms from PAC information