Baseline (Quiet Chain)

Natural environmental baseline recording with Sofar’s Quiet Chain technology

Duration: 1:18

Audio enhanced by +12dB for playback only. Downloaded files will be the original quieter version.

About This Sound

This hydrophone recording captures strong underwater currents and dynamic wave action, presenting an uninterrupted natural soundscape of flowing water, turbulence, and rhythmic surges through the water column. The mooring system uses Sofar's Quiet Chain technology, which suppresses the metallic clanking typically generated by standard anchor chains. Without the mechanical interference, the recording reveals the full range of natural ambient sounds and subtle water movements in the marine environment.

Submitted by: Nick Raymond
Submission Date: 2025-06-23

Recording Information

• Date Recorded: May 26, 2025
• Time: 11:00am
• Recording Depth: 20 meters (66 ft)
• Recording Technology: Spotter Sound
• Sea State: Wave heights of 1.5 meters. Currents @ .8 meters / sec
• Category: Earth
• Sensor: AOS BOREALIS

Recording Location

This Baseline (Quiet Chain) recording was captured at:

COORDINATES
37.731041 N, -122.567491 W