Sonotopy is an open-source library for perceptually analyzing the contents of an acoustic signal in real time. Its primary use is to map sound streams such as music or voice to a visual or other kind of output.

The library consists of biologically inspired techniques to extract high-level features from an acoustic waveform. These numeric feature values can for instance be interpreted as shapes, colors or movement.

Sonotopy was used in Chromosonia.

More information at the Sonotopy repository.