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5 votes
2 answers
140 views

High Frequency broadband sound at night in a recording - can I rule out biophonic sources?

I have conducted passive acoustic monitoring at a nature reserve (a wetland, near a city and two medium-sized roads). At night only, I have a strange source of sound that goes on and off every now and ...
Yael Lehnardt's user avatar
10 votes
1 answer
76 views

crackling/clicking sound from agricultural field

I was cycling by an agricultural field that had cut plants in it in southern Germany (near the Max-Planck for Or ithology) last summer. The remaining stems seemed brown and dried up. As a light ...
Thejasvi's user avatar
  • 4,100
10 votes
1 answer
89 views

Mystery marine animal vocalization in spring in the Bering Strait

I have manually analyzed acoustic data (Oct-May 2009-2021) from a moored hydrophone in the Bering Strait (65.78, -168.57) — about 15 km from Little Diomede and 24 km from mainland Alaska. The ...
angie_zorka's user avatar
  • 2,829
8 votes
1 answer
74 views

Unknown upswept pulsed sound recorded offshore Peru

What is this sound from offshore Peru? I recorded this sound offshore Peru and called it the “pacman” sound for obvious reasons. This was recorded from a towed hydrophone array from a large scale ...
Shannon's user avatar
  • 3,684