MMegaConvert

Convert OGG to AU

Free online OGG to AU converter. No signup required.

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Max file size: 100 MB

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How to Convert OGG to AU

Follow these simple steps to convert your file in seconds.

  1. 1

    Upload your .ogg file

    Drag and drop your .ogg file into the upload area, or click "Browse" to select it from your device. Your file is uploaded securely and processed on our servers.

  2. 2

    Click "Convert to AU"

    Once your file is uploaded, press the convert button to start the OGG to AU conversion process.

  3. 3

    Wait for the conversion to complete

    The conversion usually takes just a few seconds. You can see the progress in real time while your file is being processed.

  4. 4

    Download your converted .au file

    When the conversion is finished, click the download button to save your new .au file. The file is ready to use immediately.

Understanding OGG and AU Formats

Learn about the source and target file formats to understand what happens during conversion.

Source Format

Ogg Vorbis Audio

audio/ogg

Ogg Vorbis is a free, open-source lossy audio compression format contained in the Ogg multimedia container. It was designed as a patent-free alternative to proprietary formats like MP3 and AAC, and generally provides better audio quality than MP3 at equivalent bitrates. Ogg Vorbis supports variable bitrate encoding and is widely used in open-source software and gaming.

Advantages

  • Completely open-source and royalty-free with no patent restrictions
  • Generally superior audio quality compared to MP3 at the same bitrate
  • Supports variable bitrate for optimal quality-to-size ratio

Limitations

  • Limited hardware support in many portable players and car stereos
  • Less widely recognized and adopted than MP3 or AAC
  • Streaming support is less universal than other lossy formats

Common Uses

  • Video game audio and sound effects
  • Open-source software and Linux audio applications
  • Spotify internal streaming codec (modified Ogg Vorbis)

Target Format

Sun AU Audio

audio/basic

AU is an audio file format introduced by Sun Microsystems and commonly associated with Unix and NeXT systems. It supports various encodings including uncompressed PCM, mu-law, and A-law compression, with a simple header structure. AU was one of the earliest audio formats supported on the web and remains used in Unix-based audio programming.

Advantages

  • Simple, well-documented format with a minimal header
  • Native support in Unix, Solaris, and Java audio APIs
  • Supports multiple encoding types including mu-law for telephony

Limitations

  • Largely obsolete for general-purpose audio use
  • Limited metadata support and no modern compression options
  • Poor support in consumer audio software and devices

Common Uses

  • Unix and Solaris system audio and sound effects
  • Java application audio playback (javax.sound)
  • Legacy telephony and voice processing systems

Frequently Asked Questions

Common questions about converting OGG to AU.

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