Convert AUP to OGG

Media players, websites, and devices that accept Ogg Vorbis cannot open an Audacity project, so the project must be rendered as an .ogg audio file. Exporting also creates a portable playback copy for sharing while preserving the editable project separately.

What the AUP format is

AUP is the project format used by Audacity versions before the .aup3 format. It stores project structure such as tracks, edits, labels, effect settings, and references to recorded audio; it is not a playable audio stream.

An Audacity 2.x project normally includes an .aup file and a matching folder ending in _data. The folder contains the audio blocks needed to reconstruct the project. Keep both items together and copy them before opening or converting the project. Audacity 3.x and later use .aup3 for newly saved projects, but compatible releases can generally open older .aup projects.

What the OGG format is

OGG is a container; Audacity’s OGG export normally uses the lossy Vorbis codec. Vorbis produces substantially smaller files than uncompressed WAV or AIFF at comparable listening quality, making it suitable for web delivery, software, games, and supported media players.

OGG Vorbis is less universally supported than MP3 or AAC. Confirm that the destination application or device supports Ogg Vorbis rather than assuming that support for an .ogg extension includes every codec that can use that container.

How to export AUP as OGG

1. Put the .aup file and its matching _data folder in the same directory. Do not rename, move, or upload only one of them.
2. Install Audacity from its official website and open the project with File → Open. Select the .aup file. If the current release cannot open it, use an Audacity 2.x release compatible with the project, then export the audio from that installation.
3. Check every track, label, edit, and effect. Resolve missing-audio warnings before exporting; missing data blocks can produce silence or incomplete material.
4. Choose File → Export Audio and select Ogg Vorbis or Ogg Vorbis Files as the format. In older Audacity versions, the command may appear as File → Export → Export as OGG.
5. Choose the destination and a filename ending in .ogg, set the Vorbis quality in the export dialog, and select Export. Audacity renders the project’s audible mix, including the current track mute and solo states; it does not place editable tracks or Audacity metadata in the OGG file.
6. Play the exported file in a compatible player and check its duration, channels, and audible content.

FFmpeg and general online converters cannot interpret an AUP project by themselves because it is project data, not a complete audio stream, and may depend on the _data folder. Audacity is therefore the correct first conversion tool. After exporting a standard WAV file, a service such as CloudConvert may convert that WAV to OGG when Audacity is unavailable, but uploading the AUP file alone will normally fail. Do not upload private recordings to an online service unless its handling and retention terms are acceptable.

Quality and compatibility limits

Vorbis is lossy, so the OGG export discards some audio information and all project editability. Avoid repeated lossy conversions: if the source is MP3 or another lossy format, export directly to OGG only when the smaller target file is required. Keep the original AUP project and its _data folder; for archival or later editing, also retain a lossless WAV or FLAC master.

The output reflects the project’s sample rate, channel layout, track gain, mute and solo states, effects, and any sample-rate conversion performed during export. Labels, effect parameters, undo history, and separate track structure are not preserved. Verify those settings before exporting and retain a lossless copy if the mix may need further work.