Files with aon file extension might be found as old audio files from ArtOfNoise program.
AON file extension - ArtOfNoise Amiga audio data
What is aon file? How to open aon files?
File type specification:
The aon file extension is mainly related to an old audio format used by ArtOfNoise program for Amiga, 4/8 Voices.
Protracker compatible and extended. Sampled and synth instruments. Modules can be saved as .exe, with replay in front of data, or alone.
This aon file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.