Audfprint fingerprint file

audfprint is an audio fingerprinting utility, with native .afpt (precomputed fingerprint) and .afpk (precomputed fingerprint / "just the peaks", also called Columbia Peaks) file formats.

It was developed by Daniel Ellis at Columbia University. It was originally a MATLAB script. Newer versions are written in Python.

Identification
Files begin with ASCII "", or "".

Sample files

 * Many items at the Internet Archive Audio Archive include an .afpk file. Examples: ,

Links

 * GitHub project (Python)
 * https://labrosa.ee.columbia.edu/matlab/audfprint/ - MATLAB version
 * Internet Archive announcement