MMegaConvert

Convert AU to MKA

Free online AU to MKA converter. No signup required.

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Max file size: 100 MB

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How to Convert AU to MKA

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 MKA"

    Once your file is uploaded, press the convert button to start the AU to MKA 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 .mka file

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

Understanding AU and MKA 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

Matroska Audio

audio/x-matroska

MKA (Matroska Audio) is the audio-only variant of the Matroska multimedia container format. It can encapsulate virtually any audio codec including FLAC, AAC, Vorbis, Opus, MP3, and DTS within a single flexible container. MKA supports multiple audio tracks, chapters, tags, and embedded artwork in an open-standard container.

Advantages

  • Supports virtually any audio codec within a single container format
  • Open-standard format with excellent metadata and chapter support
  • Can contain multiple audio tracks with different languages or codecs

Limitations

  • Limited support in many portable audio players and car stereos
  • Less widely recognized than direct codec file extensions like .mp3 or .flac
  • Some media players may not handle all codec combinations

Common Uses

  • Storing high-quality audio with multiple tracks or languages
  • Archiving audio content with rich metadata and chapters
  • Audio extraction from MKV video files

Frequently Asked Questions

Common questions about converting AU to MKA.

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