View source for Audfprint fingerprint file

{{FormatInfo
|formattype=electronic
|subcat=Audio and Music
|extensions={{ext|afpt}}, {{ext|afpk}}
}}
'''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 file|MATLAB script]]. Newer versions are written in [[Python]].

== Identification ===
Files begin with ASCII "{{magic|audfprinthash}}", or "{{magic|audfprintpeak}}".

== Sample files ==
* Many items at the [https://archive.org/details/audio Internet Archive Audio Archive] include an .afpk file. Examples: [https://archive.org/download/ARCHIVETEAMADistributedPreservationOfServiceAttack_201710], [https://archive.org/download/2004-defcon-documentary-preview-jscott]

== Links ==
* [https://github.com/dpwe/audfprint GitHub project] (Python)
* https://labrosa.ee.columbia.edu/matlab/audfprint/ - MATLAB version
* [https://archive.org/post/1027794/new-music-analysis-files Internet Archive announcement]