Posts Tagged ‘ audio oracle

Some PyOracle Recombinations

Here are some recombinations of existing music made using my PyOracle Python module. PyOracle performs an Audio Oracle analysis, which determines connections and repetitions between segments of audio. For more info, you can check out the page here.

Here’s the Oracle structure for the Bach solo cello work used below:

bach-oracle

Each arc in the image indicates similarity between two segments of audio. The similarities make it possible to jump along an arc, rather than continuing linearly, and create a new ordering of the musical material – while maintaining smooth transitions between segments. During recombination, the algorithm walks through this oracle structure, and occasionally jumps either forward or backward along an arc.

Each file indicates a jump number, which gives a probability that, at a given point, playback will jump along an oracle transition rather than continue in a linear fashion. As the percentage increases, the output will consist of increasingly longer segments of the input.

Bach – 40%

Bach – 60%

Bach – 65%

Bach – 85%

Bach – 95%

pyoracle visualization of prokofiev ‘visions fugitives’ no. 1

output

PyOracle Structure

The Oracle structure of the Prokofiev mentioned in the last post.

Recomposition using Audio Oracle

Some of what I’ll be up to this year:

audio oracle analysis