Friday, March 5, 2010

sine wave speech. gibberish before. speech after.

Listening to the sine-wave speech sound again produces a very different percept of a fully intelligible spoken sentence. This dramatic change in perception is an example of "perceptual insight" or pop-out. We have argued that this form of pop-out is an example of a top-down perceptual process produced by higher-level knowledge and expectations concerning sounds that can potentially be heard as speech:
Davis, M.H., Johnsrude, I.S. (2007) "Hearing speech sounds: Top-down influences on the interface between audition and speech perception." Hearing Research, 229(1-2), 132-147

D - Trippy! It sounds like R2D2 before.
Then you listen to a line from a story.
Then replay the 'noise' and you hear the words!


What is auditory processing?

Auditory processing is a term used to describe what happens when your brain recognizes and interprets the sounds around you. Humans hear when energy that we recognize as sound travels through the ear and is changed into electrical information that can be interpreted by the brain. The "disorder" part of auditory processing disorder means that something is adversely affecting the processing or interpretation of the information.

Children with APD often do not recognize subtle differences between sounds in words, even though the sounds themselves are loud and clear. For example, the request "Tell me how a chair and a couch are alike" may sound to a child with APD like "Tell me how a couch and a chair are alike." It can even be understood by the child as "Tell me how a cow and a hair are alike." These kinds of problems are more likely to occur when a person with APD is in a noisy environment or when he or she is listening to complex information.

D - I heard the story the 2nd time in the 'static'.
However, despite having normal-range hearing, I cannot pick out speech worth a darn with background noise.
And.... I work in a bar! Great.
Accents slay me.

1 comment:

Dino Snider said...

Thanks A for this link!