These recordings represent a growing collection of sounds within the ocean soundscape, as recorded offshore of Monterey Bay, California. They are part of a research and education project that employs a deep-sea observatory to continuously record sounds within and outside the range of human hearing. These sounds fall into three categories: biophony (sounds of marine life), geophony (sounds of the earth), and anthrophony (sounds of human activities). More information about this project is available in a 2016 publication.
Use the category buttons below to select recordings associated with each source of sound. To play a sound, use the playback controls located at the lower left of each sound clip. Information about each sound is available by clicking on the sound title. Some of the recordings are relatively long (more than one hour) and so may take time to load before playing.
NOTE: Some of these sounds have a very low pitch and cannot be heard on computer or phone speakers. To hear these sounds you will need to play them on a sound system with a subwoofer speaker or use high-quality headphones. This requirement is indicated in the sound clip titles with, **audible only with appropriate speakers**.