Test for the code to calculate the Acoustic Complexity Index

dataset

posted on 2014-05-26, 00:24 authored by Luis J. Villanueva-RiveraLuis J. Villanueva-Rivera

ACI Test
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This files in this folder are part of a test of the Acoustic Complexity Index (ACI) obtained with the original software, a plugin for SoundscapeMeter.1.0.14.05.2012 by Almo Farina, and the R package soundecology:

http://ljvillanueva.github.io/soundecology/

The data was recorded using an automated digital recording system that consisted of a Nomad Jukebox 3 digital player and recorder (Model DAP-HD0003, Creative Labs, Inc, California), a portable preamplifier (Model SP-PREAMP, The Sound Professionals, Inc., New Jersey) and an electret condenser microphone (Model ECM-MS908C, Sony Electronics Inc, California). The microphone was placed at approximately one meter from the ground. The system was controlled with a microcontroller (model MSP430-P- 1121M, Olimex Ltd., Plovdiv, Bulgaria), which triggered commands to the recorder to record 1 minute every 30 minutes. Each sample was stored as a .wav file using a sampling rate of 48 kHz. Each file was cut to 50 seconds.

Each soundfile filename has the date and time, encoded as:

LINE_YYYY_MM_DD_HH_MM_SS.wav

Extract the files in each soundsfiles_#.zip file to a folder named soundfiles.

The file ACI_comparison.csv has the ACI value obtained for each file, ACI_orig is from SoundscapeMeter, while ACI_soundecology is from R and soundecology.

The file ACI_tests.R is the R script used to test the files.

For the whole dataset from which these files were obtained, see http://dx.doi.org/10.6084/m9.figshare.806302