MMegaConvert

Convert AU to WAV

Free online AU to WAV converter. No signup required.

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Max file size: 100 MB

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How to Convert AU to WAV

Follow these simple steps to convert your file in seconds.

  1. 1

    Upload your .au file

    Drag and drop your .au 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 WAV"

    Once your file is uploaded, press the convert button to start the AU to WAV 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 .wav file

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

Understanding AU and WAV Formats

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

Source 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

Target Format

WAV Audio

audio/wav

WAV (Waveform Audio File Format) is an uncompressed audio format developed by Microsoft and IBM, storing raw PCM audio data in a RIFF container. It preserves the full quality of the original audio recording with no compression artifacts. WAV files are commonly used in professional audio production where lossless quality is essential.

Advantages

  • Completely lossless with no compression artifacts whatsoever
  • Universal support in all audio editing software and operating systems
  • Simple format that is fast to read, write, and process

Limitations

  • Very large file sizes (approximately 10 MB per minute for CD quality)
  • No native support for metadata tags like artist, album, or genre
  • Impractical for streaming or portable device storage due to size

Common Uses

  • Professional audio recording and production
  • Master audio archival and studio workflows
  • Audio editing and processing intermediate format

Frequently Asked Questions

Common questions about converting AU to WAV.

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