Submarine sonar ping, many times
Navy PA announcement. Young man says, "Sonar con target is at 170."
Cheesy Sci Fi Accent - Hollow Sonar, Low then High
Tight and reverberant sonar ping sounding beep, smooth decay
Navy sonar beeps. Vintage recording.
Sound design accent: electronic doppler sound
Deep sound design sonar with delay
Sound design accent: sonar beeps