AU
→
MKA

Convert AU to MKA Online

Convert AU to MKA online. Start with free daily conversions, no install, no watermarks, and visible job status.

AU to MKA Converter

Upload your AU file to convert it to MKA format

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How to Convert AU to MKA

Follow these simple steps

1

Step 1: Upload Your File

Upload your AU file by dragging and dropping or clicking to browse

2

Step 2: Select Output Format

MKA is automatically selected as the output format

3

Step 3: Start Conversion

Click the Convert button to start the conversion

4

Step 4: Download Result

Download your converted MKA file when ready

Convert AU to MKA - Complete Guide

Converting AU to MKA stays in the audio file family but changes the traits that decide size, quality, transparency, editability, or device support. AU is a audio format. Sun audio. MKA is a audio format. Matroska audio. Below is what actually changes in a AU→MKA conversion, what is preserved, and when MKA is the better choice than keeping AU.

What changes when you convert AU to MKA

  • The audio is re-encoded into the MKA format. Because re-encoding is not free, start from the highest-quality source you have and keep quality settings high.

About the AU format

AU is a audio format. Sun audio.

  • Compression: mixed
  • Opens with: VLC, Audacity, FFmpeg

Where AU is strong: simple legacy format from Sun/NeXT systems; stores uncompressed PCM or companded mu-law/A-law audio; easy to read and parse.

Typical AU uses: legacy Unix and Java system sounds, older audio archives.

About the MKA format

MKA is a audio format. Matroska audio.

  • Compression: mixed
  • Opens with: VLC, MKVToolNix, Foobar2000, FFmpeg

Where MKA is strong: open Matroska container for audio; stores multiple tracks, chapters, and metadata; holds almost any audio codec.

Typical MKA uses: multi-track audio collections, audiobooks with chapters, high-quality audio libraries.

What MKA keeps

  • MKA adds: open Matroska container for audio.

Things to watch out for

  • One MKA limitation to keep in mind: not natively supported by browsers or many devices.

When to convert AU to MKA

  • Convert AU to MKA for multi-track audio collections.
  • Convert AU to MKA for audiobooks with chapters.
  • Convert AU to MKA for high-quality audio libraries.

AU vs MKA — format comparison

A quick side-by-side of the structural differences between AU and MKA, so you can confirm this is the right conversion for your file:

AttributeAUMKA
TypeAudio fileAudio file
CompressionFlexible (lossy or lossless)Flexible (lossy or lossless)
Web-friendlyNoNo
Typical file sizeMediumMedium
Best forlegacy Unix and Java system soundsmulti-track audio collections

Privacy & Security

Files are handled for the conversion you request. Uploads and downloads use HTTPS/TLS, and temporary files are cleared after the processing and deletion window.

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Need the opposite conversion?

Convert MKA to AU

Other AU Conversions

More formats you can convert AU to

Convert AU to MP3Convert AU to WAVConvert AU to AACConvert AU to OGGConvert AU to FLACConvert AU to M4AConvert AU to WMAConvert AU to AIFFConvert AU to OPUSConvert AU to AC3Convert AU to AMRConvert AU to CAFConvert AU to WVConvert AU to SPXConvert AU to OGAConvert AU to DTSConvert AU to MP2
View all AU conversions →

Convert to MKA

Other formats you can convert to MKA

Convert MP3 to MKAConvert WAV to MKAConvert AAC to MKAConvert OGG to MKAConvert FLAC to MKAConvert M4A to MKAConvert WMA to MKAConvert AIFF to MKAConvert OPUS to MKAConvert AC3 to MKAConvert AMR to MKAConvert CAF to MKAConvert WV to MKAConvert SPX to MKAConvert OGA to MKAConvert DTS to MKAConvert MP2 to MKA
View all MKA conversions →

AU to MKA FAQ

Converting AU to MKA preserves the content faithfully; output also depends on the source file and any settings you choose.
Upload your AU file, confirm MKA as the output format, and click Convert. Job status is shown while the file is processed, then you can download the MKA result.
Yes. You can start with free daily conversions, with no signup required for your first jobs and no watermarks on the output. Accounts and paid plans are available for higher-volume work.
No. The AU to MKA conversion runs in your browser on any device — Windows, Mac, Linux, iOS, or Android — with uploads and downloads over HTTPS.
Processing time depends on file size, format, and queue load. The page shows job status while conversion runs.
Yes. You can add multiple AU files to a batch and process them together within the current file-size and credit limits.

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