{"id":4472,"date":"2018-10-07T00:56:05","date_gmt":"2018-10-07T04:56:05","guid":{"rendered":"https:\/\/www.amyork.ca\/academic\/zz\/?p=4472"},"modified":"2018-10-07T01:11:26","modified_gmt":"2018-10-07T05:11:26","slug":"the-auditory-scene","status":"publish","type":"post","link":"https:\/\/www.amyork.ca\/academic\/zz\/cognitive-psychology\/the-auditory-scene\/","title":{"rendered":"The Auditory Scene"},"content":{"rendered":"

Timbre Constancy<\/h2>\n

-the quality of the sound is constant<\/p>\n

-you can hear the timbre of your friends voice in a quiet room an at a cocktail party<\/p>\n

-like visual constancy, it can be explained in terms of a complicated analysis of the brain<\/p>\n

Auditory Scene Analysis<\/h2>\n

-This is understood as the process by which the human auditory system organizes sound into perceptually meaningful elements<\/p>\n

-In order to hear sounds, the basilar membrane in the inner ear vibrates and neurons respond to that.<\/p>\n

-A spectrogram is an image-like picture of the sounds coming together.<\/p>\n

Auditory Stream<\/h2>\n

-Our perceptual grouping of the parts of the neural spectrogram that go together<\/p>\n

-A stream is a single happening that when combined leads to an auditory event<\/p>\n

Belongingness<\/h2>\n

-We see it as being a property of something<\/p>\n

-ex: a line is a part of something else<\/p>\n

Exclusive Allocation<\/h2>\n

-a sensory element should not be used in more than one description at a time<\/p>\n

-i.e. we see the vase, or the face, but not both at the same time<\/p>\n

Old-Plus-New Heuristic<\/h2>\n

-Sound B is free from the influence of Sound A<\/p>\n

Stream Segregation Is Stronger When:<\/u><\/p>\n

-The frequency separation between high and low tones is greater<\/p>\n

Stream Segregation is Higher At: -Higher speeds<\/h2>\n

Gestalt Grouping Explanation:<\/u><\/p>\n

-Things must be grouped together to perceive them<\/p>\n

-Separation in time and frequency -2 things: proximity and similarity<\/p>\n

Gestalt Theories Argued That:<\/u><\/p>\n

-there was a competition between the forces of attraction<\/p>\n

-it is impossible to perceive sensory elements without forming an organized whole -this is all automatic<\/p>\n

Korte\u2019s Third Law PVision)<\/u><\/p>\n

-as the speed increases, the distance between flashes must shrink if good motion is to be seen<\/p>\n

Korte\u2019s Auditory Third Law<\/h2>\n

-if you want to maintain the sense of melodic motion as the frequency separation between high and low tones increases, you must slow the sequence down<\/p>\n

Gestalt Principle of Closure\/Perceived Continuity<\/h2>\n

-the circle may not be complete but we see it as a complete circle perceptually<\/p>\n

-completing forms with gaps in them<\/p>\n

-the closure mechanism is a way of dealing with missing evidence<\/p>\n

Masking PAuditory)<\/h2>\n

-This occurs when a loud sound covers up or drowns out a softer one<\/p>\n

-Even if the softer sound is removed, it is still heard as continuing under the loud sound Pshows closure)<\/p>\n

Sequential Integration PHorizontal grouping)<\/h2>\n

-when you put A and B together into a stream Pputting it into a sequence)<\/p>\n

-forms a melodic component of music Pmelody)<\/p>\n

Spectral Integration PVertical grouping)<\/h2>\n

-the fusing of B with C into a single sound Psimultaneous, all at once)<\/p>\n

-acoustic inputs that occur at the same time Pchords and harmony)<\/p>\n

Computer Modeling Approach<\/h2>\n

-the notion of a heuristic<\/p>\n

-solves a problem to find a solution<\/p>\n

Syntactic Theory<\/h2>\n

-how to describe the rules that allow the speaker to impose a meaning on the sentence by adding, subtracting or rearranging elements in the sentence<\/p>\n

Noam Chomsky\u2019s Deep Structure<\/h2>\n

-in order to understand the sentence, the listener parses the sentence and builds a deep structure for it<\/p>\n

Physiological Explanation<\/h2>\n

-the streaming effect represents both the breakdown of a physiological mechanism and the accomplishment of scene analysis<\/p>\n

Sound-emitting<\/u><\/p>\n

-humans make use of this rather than sound-reflecting<\/p>\n

Low-Frequency Sounds<\/u><\/p>\n

-bend around obstructions<\/p>\n

High Frequency Sounds<\/u><\/p>\n

-bounce around obstructions<\/p>\n

Echoes<\/h2>\n

-in audition, echoes are delayed copies of the sound and often mix with the original sound -in vision, echoes are useful in specifying the shapes of objects<\/p>\n

Primitive Stream Segregation <\/u>-unlearned constraints<\/p>\n

Schema-Based Stream Segregation<\/h2>\n

-learned constraints<\/p>\n

-a mental representation of some regularity in our experience<\/p>\n

Principle of Psychophysical Complementarity<\/h2>\n

-states that the mental processes of animals have evolved to be complementary with the structure of the surrounding world<\/p>\n

Demany\u2019s Infant Sound Experiment<\/h2>\n

-The infants perceived the sounds as being the same, even when they were different.<\/p>\n","protected":false},"excerpt":{"rendered":"

Timbre Constancy -the quality of the sound is constant -you can hear the timbre of your friends voice in a quiet room an at a cocktail party -like visual… Continue Reading The Auditory Scene<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[113],"tags":[],"_links":{"self":[{"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/posts\/4472"}],"collection":[{"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/comments?post=4472"}],"version-history":[{"count":0,"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/posts\/4472\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/media?parent=4472"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/categories?post=4472"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.amyork.ca\/academic\/zz\/wp-json\/wp\/v2\/tags?post=4472"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}