What is a .AUP3 file?
AUP3 is the single-file Audacity project format, based on SQLite. Created by Audacity.
- Did you know
- Audacity 3 moved to the self-contained AUP3 project in 2021, ending the old folder split.
- AUP3 stores the whole project inside a single SQLite database, so the audio and the project description can no longer drift apart.
- The single-file approach can make saving or closing a large project slower, mainly because Audacity compacts the SQLite database rather than writing everything in one go at the end.
- What Analyser reads
- Identify many more audio formats: lossless/hi-res codecs (Monkey’s Audio, WavPack, TAK, True Audio, DSD/SACD, Musepack), pro containers (Core Audio, RF64/BW64, Wave64, Sun AU, Broadcast Wave with timecode), speech/mobile (Speex, AMR-WB, QCP, 3GA, M4R, GSM), MPEG Layer I/II, instrument banks (SoundFont, SFZ, DLS, RIFF MIDI, GigaStudio), ringtones (RTTTL, iMelody, SAP), tracker modules (MOD, XM, IT, S3M, OctaMED, 669, Oktalyzer), chiptunes (NES NSF, SNES SPC, VGM, Game Boy GBS, AY, YM) and Audacity projects. DJI waveform peak sidecars (PKF - the overview a DJI recorder writes beside its audio) are drawn as a waveform; Adobe Audition peak caches (also PKF) are identified.
- Depth of analysis
- .AUP3 is an identification-grade format: Analyser recognises it from its bytes and decodes the header metadata it carries, rather than opening it in a full viewer. Formats that do get a full viewer are marked "Full" on the formats page.
- Open a .AUP3 file
- Drag a .AUP3 file onto the Analyser home page (or tap to pick one). It is identified entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.