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Correction to PAMGuide

To: "" <>
Subject: Correction to PAMGuide
From: "Nathan Merchant (Cefas)" <>
Date: Mon, 14 Mar 2022 17:17:17 +0000

Dear colleagues,


Many of you involved in passive acoustic monitoring will be familiar with PAMGuide, an open-source acoustic analysis tool published as part of our 2015 publication which has been widely used in the community. We have recently become aware of a bug in the MATLAB version of this code which can lead to errors of up to several decibels at low frequencies when carrying out calibrated 1/3-octave frequency band analysis. This has now been corrected, and the updated version can now be downloaded from the article webpage under Supporting Information:


Merchant, N.D., Fristrup, K.M., Johnson, M.P., Tyack, P.L., Witt, M.J., Blondel, P. and Parks, S.E. (2015), Measuring acoustic habitats. Methods Ecol Evol, 6, 257–265.


Many thanks to Chloe Malinka and Kaitlin Palmer of SMRU Consulting who brought this error to our attention.


All the best,




Dr Nathan Merchant

Principal Scientist, Noise & Bioacoustics
Pakefield Road, Lowestoft, Suffolk, NR33 0HT, UK
Tel: +44(0) 1502 527780 | Mob: +44 (0) 7789 651086

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Dr Nathan Merchant

Honorary Lecturer

School of Environmental Sciences, University of East Anglia, Norwich, NR4 7TJ



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