openFrameworks wrapper for Essentia. It provides audio analysis algorithms modified to process signals in real-time:

• RMS, Instant power, Energy.
• Pitch frequency, Pitch Confidence, Pitch Salience.
• Tuning Frequency.
• Onsets.
• FFT, Mel Bands, MFCC
• Harmonic Pitch Class Profile
• HFC, Centroid, Inharmonicity, Spectral Complexity. Algorithm reference: http://essentia.upf.edu/documentation/algorithms_reference.html

Demo video: https://vimeo.com/129795472

Only OSX and Linux

• OSX (!): needs the OF 64 bits version of Nick Hardeman : https://github.com/NickHardeman/openframeworks_osx_64
• Linux 64 bits. Tested with Ubuntu 12.04

The two examples included in the repo can be used to build new projects over them. For including the addon in new projects:

• OSX - Xcode:

  • Project Generator -> New project (openframeworks_osx_64)
  • Build Settings->Architectures->64-bit Intel
  • Add ofxAudioAnalyzer directories to the project src/ and libs/
  • Build Settings -> User Header Search Paths -> ../../../addons/ofxAudioAnalyzer/libs/essentia/include (non-recursive)

• Linux:

  • Install Essentia library: http://essentia.upf.edu/documentation/installing.html
  • Creat New Project
  • addons.make -> ofxAudioAnalyzer
  • config.make -> PROJECT_LDFLAGS= -lessentia -lfftw3f -ltag -lavcodec -lyaml -lsamplerate -lavformat

Essentia library and this addon are distributed under Affero GPLv3 license.