= Features =

Functions implemented in the library include:

    * various onset detection functions and real time peak-picking
    * various pitch detection functions
    * beat tracking algorithm (tempo detection)
    * transient and steady state separation

== Who uses aubio? ==

    * Sonic Visualiser (http://www.sonicvisualiser.org)
    * Puredata (http://puredata.info/, see src:plugins/puredata
    * [http://www.speech.kth.se/wavesurfer/ Wavesurfer], see src:plugins/wavesurfer
    * [http://www.redsteamrecords.com/freecycle/ Freecycle]
    * [http://clam.iua.upf.edu/ CLAM]
    * [http://audacity.sourceforge.net/ Audacity] '''important''': see [#Audacity notes about audacity]

A few examples of applications are provided in examples/ and python/:

 - aubioonset
    outputs the onset detected
 - aubionotes
    uses both onset and pitch to extract symbolic music data from an audio source and emit MIDI like data.
 - aubiocut
    a python script that takes an input sound and creates one new sample at each detected onset or beat. The slices produced by aubiocut are useful for use with a sequencer such as Hydrogen.
 - aubiopitch
    a python script to extract pitch tracks from sound files

== Audacity ==

It is ''possible'' to use aubioonset from within audacity, but this requires patching the audacity source code, and rebuilding it. For more informations, see the [source:plugins/audacity/README README] in the [source:plugins/audacity plugins/audacity directory].

If you are not familiar with this kind of operation, you can just load the text file produced by: