PS_Localization_Grouping

PS_Localization_Grouping - Two Difficult Problems for the...

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1 Two Difficult Problems for the Auditory System Determining source location: The sound waveforms at the ears are one dimensional, making estimation of the direction and distance of the source very difficult. Performing source separation: Sounds from a given source often appear in a complex and varying context of other sources, making separation and recognition of sound sources difficult. These problems are responsible for much of the complexity in the design of the auditory system.
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2 Source Location and Separation The sound that reaches the ear is a combination of all the sound sources created in the environment. Thus, it is difficult identify the sounds that come from the different sources.
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3 Two cues for sound localization: intensity differences at the two ears, temporal differences at the two ears
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Intensity differences at the two ears for a high frequency tone and a low frequency tone, as a function of the direction of the sound source. The brain measures intensity differences at the two ears to determine the direction of the sound source. This kind of information is good at high frequencies and poor at low frequencies.
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This note was uploaded on 08/12/2008 for the course PSY 323P taught by Professor Geisler during the Spring '08 term at University of Texas at Austin.

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PS_Localization_Grouping - Two Difficult Problems for the...

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