Building acoustic recording units

Charlie has been hard at work building a set of five homemade acoustic recording units (ARU’s). These units consist of a high capacity Olympus digital recorder wired to 4 rechargeable D-cell batteries, housed in a waterproof Pelican case, and connected to an external weatherproof stereo microphone.

The ARU’s will be deployed around the ranch between September 18th and 27th as part of a pilot study for a larger landscape-scale acoustic analysis of bird calls.

Charlie had some valuable help from Jake the Dog yesterday.

Internal ARU Components 1