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Tools For Free

Convert MPEG to AU

Free, no account, no watermark. Converted on our servers, then deleted.

Drop an MPEG file here

As many as you like. We will show you what they convert to.

How to convert MPEG to AU

  1. 1

    Choose your file

    Drop an MPEG file onto the converter, or pick one from your device. You can add several at once.

  2. 2

    Select AU

    Pick AU as the output format. Open Settings if you want to control the audio codec, the audio bitrate, and the sample rate, and 2 more.

  3. 3

    Download the result

    Convert and download the finished file. No account, and nothing to install.

mpeg

MPEG Program Stream

An older broadcast and DVD-era container, typically carrying MPEG-1 or MPEG-2 video.

au

Sun Audio

Uncompressed audio from Sun and NeXT workstations, still read by Java and some Unix tools.

MPEG to AU, asked and answered

Does converting MPEG to AU lose quality?

Nothing further is lost, but nothing is recovered either. AU stores exactly what the MPEG contains, compression artefacts included, and the file is usually several times larger for no visible gain.

Can I convert the AU back to MPEG?

No. AU keeps the sound and throws the picture away, so there is nothing left to put back into an MPEG.

What can I change about the AU it produces?

You can set the audio codec, the sample rate, mono or stereo, and where it starts and stops. Anything left on Auto is decided by the encoder, which is usually the right answer unless you are targeting a specific size or device.

Where does the conversion happen?

On our server. The file is sent over HTTPS and converted in a sandbox with no network access of its own; your input and the result go together, removed at once if it fails and otherwise kept for a few minutes so you can download them, then deleted — whether or not you did. There are no accounts for anything to be kept against.

Is there a limit on file size?

Yes — there is a per-file cap and an hourly job limit, because this runs on one small server. The API page states the limits currently in force rather than a number baked into this page.

Other formats from MPEG

Other ways to reach AU