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Computation for Sound Processing Psycho

Computation for Sound Processing Psycho. Georg Essl. Psychology of (Re)Cognition. Cognition is Vision Audition Touch, Smell, Taste, … … and recognition of stuff! What is this “stuff?” When do we confuse “stuff?”. Don’t Give Me That Weird Eye. Psychological Effects in Vision Ambiguity

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Computation for Sound Processing Psycho

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  1. Computation for Sound ProcessingPsycho Georg Essl

  2. Psychology of (Re)Cognition • Cognition is • Vision • Audition • Touch, Smell, Taste, … • … and recognition of stuff! • What is this “stuff?” • When do we confuse “stuff?”

  3. Don’t Give Me That Weird Eye • Psychological Effects in Vision • Ambiguity • Categorical Seeing • Mis-Classification • Absurd Constructions • Perspective/Depth Assumptions • Color, Size, Relation, Orientation …

  4. Canonical Ambiguities

  5. Canonical Ambiguities Necker Cube Schroeder Stairs

  6. Illusions • When we get “stuff” wrong • Size • Shape • Color

  7. Size Illusion • Size and Distance – Mario Ponzo

  8. Size Illusion • Size and Color – Joseph Jastrow

  9. Size Illusions • Size and Angles – Mueller & Lyer

  10. Size Illusion • Size and Angle (2) - Sander

  11. Size Illusions • Size and Perspective – Roger Shepard

  12. Size Illusion • Object Size

  13. Shape Illusion • Bristol Café – Richard Gregory

  14. Shape Illusion Zoellner

  15. Shape Illusions

  16. Shape Illusions • Orbison

  17. Color Illusion • Hermann Grid

  18. Color Illusion • Checker Shadow – Ted Adelson

  19. Color Illusion • Checker Shadow – Ted Adelson

  20. Color Illusion

  21. Bridget Riley – “Movement in Squares”

  22. Moving Illusion • Ouchi Illusion

  23. Fill in the Blanks • Seeing what isn’t there • Kanisza figure

  24. Quickly – False Reality • Messed Up Visuals • Geometry • Representation • Categories

  25. M. C. Escher

  26. Pieter Buegel - 'The Magpie on the Gallows' (1568)

  27. Oscar Reutersvaerd

  28. Salvatore Dali - “Invisible Afghan with the Apparition on the Beach of the Face of Garcia Lorca in the Form of a …”

  29. Salvatore Dali - “Swans reflecting elephants“

  30. Salvatore Dali - “Fifty Abstract Pictures Which ... Appear as the Head of a Royal Bengal Tiger”

  31. Rene Magritte

  32. OK, Enough Vision • Sound Illusions exist too. • Merging to Beats (2) • Masking (3) • Completion (5) • “Common Fate” (6)

  33. Sound • Cocktail Party Effect (22) • Precedence Effect (23) • Musical Groupings (31-33) • Separations of Melodies (34) • Frequency distance, Volume, Timbre

  34. Sound • Voice Separation: • Wessel Loop (36) • Musical Example, two melody play on violin (37)

  35. Word/Phoneme Groupings • Silence gaps: Ara ala -> Arda Alga (46) • Gray ship or not (47)

  36. Melody Recognition • Shepard Tritone Paradox (52) • Scrambled Melodies (53)

  37. Musical Escher • Infinite Upward Motion • Risset glissando (54) • Original discrete Shepard tones (55) • Tempo Illusions • Risset, Ligeti (56) • More Shepard (57)

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