Click Add Your Media and upload your AU file.
Make sure that the output format is set to MP4.
Click Convert.
Popular converters:
You can also convert your files with our powerful desktop app.
If you need to convert multiple files or your file is too large for the online converter, try the desktop alternative. The Movavi converter is a versatile audio, video, and image format changer. It deals with over 180 file formats, can convert files in bulk quickly, with high output quality and resolution. Its SuperSpeed mode gives you the fastest conversion speed and no quality loss. It has versions for both Windows PC and Mac and is really lightweight, allowing you to process photos, movies, and music files even on a weak computer.
How to convert AU to MP4 fast and easy? Read the guide below to find out!
Step 1. Download and install the Movavi converter
How to use a file converter? First, download the version of the software for Microsoft Windows or Macintosh, launch it, and proceed following the on-screen instructions. When the app is installed to your computer, it will run automatically.
Locate the AU files you want to convert and drag-and-drop them into the program’s window. The application can convert big batches of files – there’s no limit to how many files you can transfer at once.
In the Formats menu, select the file type you want to turn your media into and choose the target format for the files. Also, you can change the conversion settings: choose a different bitrate, resolution (including HD, Ultra HD, and even 4K), codec, etc. Pay attention to the SuperSpeed label: it indicates that the conversion will be performed with a very high speed and without losing quality.
To specify the output folder, click the Save to button. Hit the Convert button to launch the process. When the converting is done, the new media files will be saved to the chosen folder.
Now you know how to change the file format using the Movavi converter. WIth this tool, you can also reduce the file size, cut out clips from videos, crop pictures, and create animations from your favorite movies. Get the free trial version and test it out!
Are you looking for a hassle-free method to convert AU to MP4 online for free? The solution lies with Online Video Converter, a remarkable tool that simplifies the conversion process, making it both efficient and cost-effective.
Before jumping into the conversion steps, let's understand why converting AU to MP4 can be beneficial. AU format, primarily used in Unix systems, is known for its simplicity and decent sound quality. However, its major drawback is compatibility, as it is not widely supported by modern multimedia software and devices. In contrast, MP4 is a universal multimedia format that not only handles audio but also video, making it immensely popular for both online streaming and storage.
The need to convert AU to MP4 online for free arises from the desire to enjoy your audio files across a variety of platforms and devices without any compatibility concerns. Whether you want to play your audio on smartphones, tablets, or even in video editing software, MP4 format ensures seamless integration and usability.
This is where Online Video Converter comes into play. It is an easy-to-use, online tool that allows you to convert AU to MP4 for free. With a straightforward interface and quick processing, this tool ensures that your audio files are converted to MP4 format in just a few clicks. You don't need any technical expertise or software installation to use this service.
To use Online Video Converter, simply upload your AU file, select MP4 as the output format, and let the tool handle the rest. In a matter of minutes, your file will be converted and ready for download, maintaining the original audio quality.
So, if you're wondering how to convert AU to MP4 online for free, Online Video Converter is an excellent choice. It offers a simple, quick, and cost-effective solution to overcome compatibility issues and enjoy your audio files in a more versatile and widely accepted format.
What is AU?
Full name
Au File Format
Format type
Audio
Developed by
Sun Microsystems
Description
What is AU? AU is short for “audio”, which means that this file type was created to store sound. It is not a very common format; it is primarily used on Unix systems, which are not widely themselves. Still, playback of AU files on Windows or Mac is also possible; several programs are able to open these audio files. Below, you’ll find information on how to play AUs.
File extension
.au
Technical details
The AU format specification has three main parts: a header, an annotation, and the main block that contains audio data. This data can be encoded by μ-law, PCM, or A-law algorithms. Aside from the programs listed below, you can also use Java apps to play AU files.
Associated programs
Windows Media Player, QuickTime, VLC, and others
What is MP4?
Full name
MPEG-4 Part 14
Format type
Video
Developed by
Moving Picture Experts Group
Description
MP4 is a format created in 2001 by an ISO/IEC working group. MP4 files are multimedia files used for storing video/audio and other content. Short for “MPEG-4 Part 14,” this file type is very common and recognized by most systems and devices. Check the list below if you’re not sure how to open MP4 files and which programs can play them.
File extension
.mp4
Technical details
MPEG-4 Part 14, also known as ISO/IEC 14496-14:2003, is one instance of a more general standard (ISO/IEC 14496-12:2004) with specifications based on Apple’s QuickTime File Format. The MPEG-4 container uses AAC for encoding audio as a means to restrict data copying via lossy compression and playback. Like its many counterparts, the container supports web streaming.
Associated programs
iTunes, QuickTime Player, Windows Media Player, VLC, RealPlayer, etc.
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