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Exporting audio

Exports render offline — faster than realtime and independent of your audio device. Everything you hear is in the bounce: clip gains, fades, crossfades and the mix of all tracks.

Exporting the arrangement

File → Export Audio… (Cmd+Alt+B). The dialog offers:

  • Format — WAV, FLAC, AIFF, Ogg Vorbis or MP3
  • Sample rate
  • Output channels
  • Bit depth (WAV, FLAC, AIFF) or Quality, the bit rate (Ogg Vorbis, MP3)
Format Kind Bit depth Notes
WAV lossless 16, 24 or 32
FLAC lossless, compressed 16 or 24 noticeably smaller than WAV; at most 8 channels per file
AIFF lossless 16 or 24
Ogg Vorbis lossy — 64 to 500 kbps (default 192 kbps); at most 8 channels per file
MP3 lossy — 96, 128, 160, 192, 256 or 320 kbps (default 192 kbps); mono or stereo; at most 48 kHz

FLAC and AIFF hold exactly the same audio as a WAV of the same bit depth. Ogg Vorbis and MP3 give up a little detail for much smaller files, which suits sharing a mix more than archiving it. MP3 plays everywhere. Ogg Vorbis sounds a little better at the same size, and its kbps figures are approximate, since Vorbis varies its bit rate with the material. An MP3 export above 48 kHz is resampled to the highest rate MP3 has. For a multi-channel export wider than the format allows, choose multi-mono (one file per channel) or a different format.

MP3 files are encoded with LAME, which is built into Audionaut.

Mono and stereo exports render the mix as you hear it, including each channel's output routing: channels routed directly to outputs 1 or 2 land on those file channels unpanned, and channels routed to higher outputs are left out. Multi-channel and multi-mono exports are stems — every channel of the arrangement goes to its own file channel (or file), regardless of routing. Multi-mono files are named after the one you choose, numbered per channel: mix.flac becomes mix-01.flac, mix-02.flac, and so on.

Exporting a single clip

Right-click a clip and choose Export…. The clip is bounced by itself — with its own gains and fades applied, so it sounds exactly as it does in the arrangement.

Name the file .wav, .flac, .aiff, .ogg or .mp3 to pick the format. A FLAC or AIFF from a 32-bit float source is written at 24 bits, and Ogg Vorbis and MP3 use the default 192 kbps.

Exporting from the command line

The export verb of audionaut-cli renders the same way. The format follows the output file's extension (-o mix.wav, .flac, .aiff, .ogg or .mp3), and Ogg Vorbis and MP3 take --bitrate in kbps (192 by default) instead of --bit-depth. It adds a few scripted conveniences: a start/length window, one-mono-file-per-channel (--multi-mono), and bouncing a named region (always dry — a region is raw material; gains and fades belong to clips). See The command line and AI agents.