I have years of passive acoustic monitoring data collected on several full-bandwidth underwater noise recorders around windfarms. Given the volume of the data, I need to automate the analysis, and am uncertain how to do so in a way that takes all of the following goals into account.
I want to be able to:
- say something about noise levels over time;
- say something about dolphin/porpoise presence over time
- as well as whenever pile-driving noise associated with the construction of offshore wind farms is occurring.
For dolphin/porpoise presense, I plan on using a click detector in PAMGuard.
For impulsivity measurements (i.e. to measure the sound whenever a brief, intermittent pile-driving sound is happening), I'm uncertain how to proceed. I haven't found an in-built kurtosis measure in either of these softwares, and so am considering running either one twice, for example, each with different time averaging (maybe 1 min for general soundscape, and maybe 1 sec for impuslive sounds).
I'm not convinced this is the most streamlined way to measure the sound. Is there a 3-birds-1-stone solution here? Suggestions appreciated for finding out how to both appropriately measure impulsivity and keep track of overall SPLs in years of acoustic data.