Portable Sound Format

Readable

audio

The Portable Sound Format (PSF) is a sequencer sound file format for video game music, created by Neill Corlett. PSF files contain audio data and a sequence player. A file with the .psf or .psf1 extensions will usually be self-contained files holding both the audio library data and sequencing data. A .minipsf or .minipsf1 will hold just sequencing data, while a .psflib or .psf1lib will contain the audio library data so these must reside in the same directory where used.

Identify it

Extensions	`.psf.minipsf.psflib.psf1.minipsf1.gsf.gsflib.minigsf`
MIME types	`application/octet-stream`
Signatures	`505346` at byte 0 (Portable Sound Format) `50534601` at byte 0
PRONOM	`fmt/959`
Wikidata	`Q2104918`

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Q758685Open sourcereads · 2-clause BSD License

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Sources

From Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-24.

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