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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 ProcessingPsycho 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 • Categorical Seeing • Mis-Classification • Absurd Constructions • Perspective/Depth Assumptions • Color, Size, Relation, Orientation …
Canonical Ambiguities Necker Cube Schroeder Stairs
Illusions • When we get “stuff” wrong • Size • Shape • Color
Size Illusion • Size and Distance – Mario Ponzo
Size Illusion • Size and Color – Joseph Jastrow
Size Illusions • Size and Angles – Mueller & Lyer
Size Illusion • Size and Angle (2) - Sander
Size Illusions • Size and Perspective – Roger Shepard
Size Illusion • Object Size
Shape Illusion • Bristol Café – Richard Gregory
Shape Illusion Zoellner
Shape Illusions • Orbison
Color Illusion • Hermann Grid
Color Illusion • Checker Shadow – Ted Adelson
Color Illusion • Checker Shadow – Ted Adelson
Moving Illusion • Ouchi Illusion
Fill in the Blanks • Seeing what isn’t there • Kanisza figure
Quickly – False Reality • Messed Up Visuals • Geometry • Representation • Categories
Salvatore Dali - “Invisible Afghan with the Apparition on the Beach of the Face of Garcia Lorca in the Form of a …”
Salvatore Dali - “Fifty Abstract Pictures Which ... Appear as the Head of a Royal Bengal Tiger”
OK, Enough Vision • Sound Illusions exist too. • Merging to Beats (2) • Masking (3) • Completion (5) • “Common Fate” (6)
Sound • Cocktail Party Effect (22) • Precedence Effect (23) • Musical Groupings (31-33) • Separations of Melodies (34) • Frequency distance, Volume, Timbre
Sound • Voice Separation: • Wessel Loop (36) • Musical Example, two melody play on violin (37)
Word/Phoneme Groupings • Silence gaps: Ara ala -> Arda Alga (46) • Gray ship or not (47)
Melody Recognition • Shepard Tritone Paradox (52) • Scrambled Melodies (53)
Musical Escher • Infinite Upward Motion • Risset glissando (54) • Original discrete Shepard tones (55) • Tempo Illusions • Risset, Ligeti (56) • More Shepard (57)