Introduction to the Acoustic Diversity Index (ADI)

Over the last three years of maintaining this blog, there’s been a conspicuous absence in the acoustic index toolkit presented so far. Whilst the Bioacoustic Index (BI), Acoustic Complexity Index (ACI) and Normalised Difference Soundscape Index (NDSI) have been introduced and demonstrated across given case studies, the Acoustic Diversity Index (ADI) hasn’t been covered to

Batch time compression and crossfade with Audacity and Python

If you’ve found this post and want to jump to the solution I’ve developed, go for it and find it further down this post – I shall not be offended. However, if you’re a regular reader of this blog and you’d like some background on why I looked into developing this process, please read ahead.

Acoustic detection in monitoR – an overview

Up to now on this blog I’ve been exploring acoustic ecology and data science tools mostly within the context of acoustic indices, regular events occurring in a time series and trend-based analysis. This time around, I thought I would introduce an R package developed by Sasha D. Hafner and Jon Katz called monitoR. Its primary

Preparing big audio files for analysis

If you read my previous post regarding data science workflow, you might recall that I briefly made reference to large audio files and how one might prepare the data for processing and generating useful points of data. One file and one hour: Let’s say I’ve got a single audio file of an hour’s duration. I

Middle Farm Project – Part 2: Towards a project workflow

This post is a companion to the previous instalment. If you haven’t already checked it out, you can find it here. If you don’t feel like reading the previous post, this video I just made provides a basic overview. This blog instalment is intended to introduce the principles of a data science workflow and apply

Middle Farm Project – Part 1: An overview

Note: The next couple of posts are intended as a follow-on from the previous post, which provided an overview of the compact acoustic logger made by Open Acoustic Devices, the AudioMoth.  This post, “Middle Farm Avifauna Survey” will be the first in a multi-part series that will explore the AudioMoth in practice: introducing a new