callsync: callsync: sychronous analysis of multiple microphones

In callsync: Recording Synchronisation, Call Detection and Assignment, Audio Analysis

callsync: sychronous analysis of multiple microphones

Description

Intended to analyse recordings from multiple microphones (e.g., backpack microphones in captive setting). It allows users to align recordings even if there is non-linear drift of several minutes between them. A call detection and assignment pipeline can be used to find vocalisations and assign them to the vocalising individuals (even if the vocalisation is picked up on multiple microphones). The tracing and measurement functions allow for detailed analysis of the vocalisations and filtering of noise. Finally, the package includes a function to run spectrographic cross correlation, which can be used to compare vocalisations. It also includes multiple other functions related to analysis of vocal behaviour.

Details

The main features of the package are:

• alignment and partitioning of drifting microphones using signal compression and cross correlation

• call detection using an amplitude envelope

• fine-scale alignment and call assignment across recordings using cross correlation and energy content

• fundamental frequency tracing

• analysis of the resulting traces and wav clips

The package offers functions to:

• create flexible spectrograms

• run spectrographic cross correlation

• analyse amplitude and frequency modulation

• load selection tables from Raven and Audacity

• calculate performance of the detection and assignment functions

License: GNU (>= 2)

Authors: Simeon Q. Smeele and Stephen A. Tyndel

Maintainer: Simeon Q. Smeele, <[e-mail]>

callsync documentation built on May 29, 2024, 5:30 a.m.