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ohun is intended to facilitate the automated detection of sound events, providing functions to diagnose and optimize detection routines.

The main features of the package are:

  • The use of reference annotations for detection diagnostic and optimization
  • The use of signal detection theory indices to evaluate detection performance

The package offers functions for:

  • Curate references and acoustic data sets
  • Diagnose detection performance
  • Optimize detection routines based on reference annotations
  • Energy-based detection
  • Template-based detection

All functions allow the parallelization of tasks, which distributes the tasks among several processors to improve computational efficiency. The package works on sound files in ‘.wav’, ‘.mp3’, ‘.flac’ and ‘.wac’ format.

Install/load the package from CRAN as follows:

# From CRAN would be

#load package

To install the latest developmental version from github you will need the R package remotes:


#load package

Please cite ohun as follows:

Araya-Salas, M. (2021), ohun: diagnosing and optimizing automated sound event detection. R package version 0.1.0.