Convert AU to AC3 in 3 steps

Convert AU to AC3 easily within a few seconds using this free and online tool. Our converter has no file size limitations, and conversions are keeping all data from the original audio file. Choose your documents and convert any audio from AU to AC3.

How to convert AU to AC3 in 3 steps

Our goal was to create a simple but efficient AU to AC3 online converter. That's why we decided to make it so easy to use. All it takes to convert every file is a three-step process.

Upload AU file

STEP 1

Upload your AU file in the upload box using a 'drag and drop' method or add a link of a document you want to convert.

Converting AU to AC3

STEP 2

After uploading an audio file, press the 'Start conversion' button and wait a few moments for conversion to be finished.

Download converted AC3 file

STEP 3

The only thing left for you to do is to download all converted AC3 audio files to your computer.

AU Converter

What is a AU file?

This type of file represents a simple audio file that was primarily common on NeXT systems and early Web pages. The AU file format was, at first, used by Sun or some similar Unix-based machine, but now, it can be opened with other audio programs as well. To reproduce this file format, you can use Nullsoft Winamp, Apple QuickTime Player, Microsoft Windows Media Player, RealNetworks, RealPlayer Cloud, or Adobe Audition CC. Although AU files are quite small and have poor sound quality, they store information in three sections. The first one is called header, with a maximum of 24 bytes. Next, there’s a variable-length annotation block. And last but not least, there’s the audio data itself.

AC3 Converter

What is a AC3 file?

A file with an AC3 extension uses lossy compression to reduce the overall size of a file. AC3 stands for Audio Codec 3 created by Dolby Laboratories. This type of file supports the surrounding sound. It has a separate track for each of six speakers of a surround sound setup. One speaker is dedicated to low-frequency subwoofer output, while others are dedicated to the normal range. It means that the AC3 format has a 5:1 surround sound setup. This type of file is mostly used for audio in movie theaters, video games, and DVDs.

AU to AC3 conversion is not quite convenient for you? Never mind, there are plenty of formats for you to choose from.

AU TO AAC, AU TO AC3, AU TO AIF, AU TO AIFC, AU TO AIFF, AU TO AMR, AU TO CAF, AU TO FLAC, AU TO M4A, AU TO M4B, AU TO MP3, AU TO OGA, AU TO SFARK, AU TO VOC, AU TO WAV, AU TO WEBA, AU TO WMA and AU TO AU.

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