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Which among the following is the first step in auditory scene analysis?

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Which among the following is the first step in auditory scene analysis?

(a) Pitch scale detection

(b) Filtering

(c) Grouping

(d) Segmentation

I have been asked this question at a job interview.

Enquiry is from Next Generation Wireless Network topic in portion Next Generation Wireless Network of Cognitive Radio

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Correct choice is (d) Segmentation

Explanation: Auditory scene analysis consists of two steps namely segmentation and grouping. Initially, the auditory scene is subdivided into time-frequency zones or segments that exhibit coherent structure. Then the segments tracing back to the same source in auditory streams are grouped.

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