For my thesis I'm working with 25 AudioMoths to see what the effect of noise is on roosting behaviour of Great tits. I would like to analyse the recordings using a R-script that tells me what the mean amplitude, frequency etc. is of different recordings. I basically want the noise spectrum of different locations and I don't have to identify any birdsongs in my recording. Has anyone got suggestions on where I should look or what I can use? Much appreciated!