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Spectrograms of Playback Sounds (Hz). Except for the 10 kHz Control B tone (1 s), all windows are 3 s in duration. (A) Control B: 10 kHz test tone. (B) Control A: dolphin whistle fragment. (C) Ambient soundscape of dolphin pools without added anthropogenic sound. (D) Cruise ship. (E) Idling personal watercraft. (F) Navy LFAS.
