Computation for Sound Processing Psycho

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Presentation transcript:

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 Categorical Seeing Mis-Classification Absurd Constructions Perspective/Depth Assumptions Color, Size, Relation, Orientation …

Canonical Ambiguities

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

Shape Illusions Orbison

Color Illusion Hermann Grid

Color Illusion Checker Shadow – Ted Adelson

Color Illusion Checker Shadow – Ted Adelson

Color Illusion

Bridget Riley – “Movement in Squares”

Moving Illusion Ouchi Illusion

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

Quickly – False Reality Messed Up Visuals Geometry Representation Categories

M. C. Escher

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

Oscar Reutersvaerd

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

Salvatore Dali - “Swans reflecting elephants“

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

Rene Magritte

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)