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Long-Term Soundscape Monitoring and Classification Birds, amphibians, mammals, and insects use sound to detect threats, find mates, seek food, navigate,

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Presentation on theme: "Long-Term Soundscape Monitoring and Classification Birds, amphibians, mammals, and insects use sound to detect threats, find mates, seek food, navigate,"— Presentation transcript:

1 Long-Term Soundscape Monitoring and Classification Birds, amphibians, mammals, and insects use sound to detect threats, find mates, seek food, navigate, etc. Very little is known in a scientific sense about the diurnal and seasonal variations in natural sound Long-term trends in the natural soundscape may be a proxy for overall environmental health

2 An Hour of Natural Quiet… Time [minutes] Frequency [Hz, log scale] Level [dB] Are the sonic events significant?

3 Classifying Bird Vocalizations Goal: Automatic bird species identification Application: Birdstrike Avoidance and risk assessment (USAF) Method: Steerable directional microphone (parabolic or multi-element array) with computer-based pattern recognition system Technique: Sinusoidal peak track analysis

4 Bird Vocalization Components

5 American Crow “Caws” Peak Track Representation


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