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Spectral-Temporal Analysis of Dog Barks

CSEF · 2012 Mammalian Biology

Daniel C. Moon · Moorpark High School, Moorpark, Ventura County

Overview

Objectives/Goals The objective of this experiment is to determine whether dogs bark differently in response to different stimuli. Methods/Materials Barks were recorded various times in response to three stimuli. These were in response to a stranger, when we were going outside, and when it wanted attention. These recordings were analyzed to view their spectra of frequencies and the amount of time between consecutive barks. Results The results show that barking towards strangers have more low frequencies, barking for attention have more mid-range frequencies, and the barking when going outside have more high range frequencies. Barking at a stranger had an average interval of .295 seconds, barking for attention had an average interval of .358 seconds, and barking when going out had an average interval of .412 seconds. Conclusions/Discussion My hypothesis was correct because dogs do have different barks according to their spectra and intervals.

Summary statement

Evaluating spectrums and intervals of dog barks to see if they have different barks.

Help received

Father introduced me to the computer software

Competition history

  • CSEF 2012 Mammalian Biology · Entry S1209

Resources

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Source: California Science & Engineering Fair public projects

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