The Whistle (1997): This sound was recorded at a hydrophone array and is characterized by a high-pitched whistle followed by a lower tone. Despite being analyzed, its source remains unknown. Add Comment + Votes ( 2 )
Roman - August 25, 2025TOPThe Whistle is a mysterious, clear, and unmistakable sound captured only once in 1997 by an autonomous hydrophone in the Pacific. Lasting just over a minute, it consists of a rising tone, like a pure synthetic whistle, yet it was detected in a remote area with no shipping or military activity. Its source remains completely unidentified, and it has never been heard again, making it one of the ocean's most elusive acoustic anomalies.+ Reply ( 1 )Report