I need help with audio sensor tracker

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mathsgene

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I need help with the matlab code for audio sensor tracking in indoor area. I want to deploy speakers and record and save sounds at different locations in a room after which i'll compare intruder sounds with this sounds to estimate the position of an intruder. I really need your help.
 

Use 4 microphones in the 4 corners of the room.
Coherently sample all 4 channels.
Cross corrector channels to determine time of arrival delays.
Use trigonometry to calculate position of the source
 

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