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Sonification in Theoretical Physics

Sonification in Theoretical Physics. Katharina Vogt Prof. W. Plessas Prof. R. Höldrich Todtmoos, 12th september 2007. Oversound. Bats Doppler effect Alarm Geiger counter Computer sounds Sonar Heart beat Bells. Overview. Motivation

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Sonification in Theoretical Physics

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  1. Sonification in Theoretical Physics Katharina Vogt Prof. W. Plessas Prof. R. Höldrich Todtmoos, 12th september 2007

  2. Oversound • Bats • Doppler effect • Alarm • Geiger counter • Computer sounds • Sonar • Heart beat • Bells

  3. Overview Motivation Auditory Display and Sonification • Examples • Methods Sonifications… • …of Numerical Spin Models • …in Lattice QCD Outlook

  4. Motivation Auditory Display and Sonification • Examples • Methods Sonifications… • …of Numerical Spin Models • …in Lattice QCD Outlook

  5. Motivation • Science focused on visualisation • Changes: • real time audio synthesis software • human audition • growing amounts of data • Auditory Display: possible alternative and complement

  6. Motivation Auditory Display and Sonification • Examples • Methods Sonifications… • …of Numerical Spin Models • …in Lattice QCD Outlook

  7. Galilei

  8. Doppler effect

  9. Examples • Galilei, Dopplereffekt • Discovery of Quantum Fluctuations • Plasma and Radio Wave Science • Listening to Earthquakes • Oscillations of yeast cells with AFM • EEG - data • Social Sciences

  10. Example: Quantum Oscillations Pereverzev S. V. , Loshak A., Backhaus S., Davies J.C. and Packard R. E., „Quantum Oscillations between two weakly coupled reservoirs of superfluid 3He“, Nature, Vol. 388, July 1997, pp. 449 – 451. Josephson B. D. „Possible new effects of superconductive tunneling“, Phys. Lett. 1, 251 – 253, 1962. f=(2-1)/h  ... mean energy per particle

  11. Auditory Display / Sonfication • 1992 - 1st International Conference on Auditory Display (ICAD) • Sonification = use of audio to convey information • Applications: • Auditory Graphs • Attensons • Earcons • Auditory Icons

  12. Methods in research Audification: • mapped to 1-d • ev. transposed Parameter mapping: Model-based sonification

  13. Advantages

  14. Advantages + eyes-free conditions + high temporal and frequency resolution + parallel audio streams + the formation of auditory gestalt + backgrounding + usually interactive Furthermore in physics: + many (parameter) dimensions + audio streams as mathematical subspaces + wave phenomena in nature

  15. Disadvantages - low resolution in some variables - potentially the annoyance - no persistence - user limitations and cultural bias - longer history of visualisation - the lack of absolute value and perceptual orthogonality

  16. Aims of Sonification • Alternative representation of data • Use of audition in order to analyse scientific data • Artistic application

  17. Motivation Auditory Display and Sonification • Examples • Methods Sonifications… • …of Numerical Spin Models • …in Lattice QCD Outlook

  18. Sonifications so far SonEnvir - Sonification Environment (2005-2007) • Spin models (Ising and Potts model) • Pilot project on topological objects in QCD • Baryon spectra of CQMs • Simple sonifications of the Dirac spectrum • Smaller projects: chaotic double pendulum, logistic equation

  19. Ising and Potts Model Ising model: • spin up and down • phase transitionmagnetic/ non-magnetic Potts model: • discrete, • q vectors on unit circle • For q5 1st order phase transition • For q4 continuous

  20. Audification of the Ising model Sequentialisation: (“torus-path” or Hilbert curve)

  21. Parameter Mapping of Ising Model

  22. Motivation Auditory Display and Sonification • Examples • Methods Sonifications… • …of Numerical Spin Models • …in Lattice QCD Outlook

  23. Sonification in lattice QCD - pilot study topological charge 20 configurations - 15 smearing steps

  24. Sonification in lattice QCD - pilot study

  25. Motivation Auditory Display and Sonification • Examples • Methods Sonifications… • …of Numerical Spin Models • …in Lattice QCD Outlook

  26. Outlook • XY-model • Lattice QCD

  27. Sonification is a possible alternative and complement to visualisation and data analysis, also in physics. Audio examples: • http://sonenvir.at/data • www.icad.org

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