Audio

AU viewer

To open an AU file, drop it in the box below. It opens straight away, even with no extension or the wrong one. Your browser opens it on your device: nothing is uploaded.

Opened on this device, never uploadedDrop or paste another file at any time

What you see

AU in the viewer
Decodedμ-law, A-law, PCM, float
WaveformDrawn under the player
DetailsEncoding, channels, rate, notes in the file
NextConvert to MP3 or WAV
Extensions.au, .snd
UploadNone: opened on your device

What is an AU file?

In short

AU (also .snd) is the sound format of Sun and NeXT computers, still found in old software, Java and sound archives.

A player for the sound, decoded by webdave’s own reader into a WAV: μ-law, A-law, 8 to 32-bit PCM and floating point. A waveform is drawn under the player.

How to open an AU file

  1. Add your AU. Drop the file in the box, choose it or paste it.
  2. Look at it. A player for the sound, decoded by webdave’s own reader into a WAV: μ-law, A-law, 8 to 32-bit PCM and floating point. A waveform is drawn under the player.
  3. Take it further. Open in hands it, in a new tab, to File converter or Batch.

Questions

Drop it here: it is decoded on your device and plays in the browser.

No. The viewer runs in your browser and opens the file on your device. Nothing is sent anywhere.

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