A Low-Cost Open-Source Acoustic Recorder for Bioacoustics Research
Acoustic recorders are the primary tool used in marine bioacoustics; however, available devices are either expensive or lack self-calibration capabilities that are critical for high-quality measurements. Moreover, the software used in proprietary designs can be inflexible and may involve unknown processing steps. To address this, we have designed a miniature low-cost yet high-performance acoustic recorder that features open-source hardware and software. Circuitry is included for self-calibration, making it possible to evaluate device performance in situ. Our intention is that the design will develop in conjunction with the needs of the bioacoustics community.
KeywordsAcoustic Recorder Design Noise
The authors gratefully acknowledge the contributions of J. Montgomery, A. Cozens, and M. Birch of the Leigh Marine Laboratory, University of Auckland.
- Allman RI (1968) A low-noise FET preamplifier for wide-band hydrophones. Defense Technical Information Center (DTIC) Report AD0831021, US Naval Undersea Warfare Center, PasadenaGoogle Scholar
- de Jong CAF, Ainslie MA, Blacquiere G (2011) Standard for measurement and monitoring of underwater noise. Part II: procedures for measuring underwater noise in connection with offshore wind farm licensing. Report TNO-DV 2011 C251, Netherlands Organization for Applied Scientific Research (TNO), The HagueGoogle Scholar
- European Commission (2008) Directive 2008/56/EC of the European parliament and of the council of 17 June 2008, establishing a framework for community action in the field of marine environmental policy (Marine Strategy Framework Directive). Official Journal of the European Union L164:19–40Google Scholar
- Rittenmyer KM, Schulze WA (1999) Hydrophones. In: Wiley encyclopedia of electrical and electronic engineering. Wiley, New York, pp 402–419Google Scholar
- Urick RJ (1983) Principles of underwater sound, 3rd edn. McGraw-Hill, New YorkGoogle Scholar