The best online MP4 to AU conversion
Convert any video file from MP4 to AU in a few easy steps using this free online tool. Our converter saves your time as well as the quality of every converted file.
Step by step MP4 to AU conversion
We created trustworthy MP4 to AU online converter that is easy to use. In just 3 steps you can convert and download any video file as many times as you want.
STEP 1
Use a 'drag and drop' method to upload your MP4 file or add a link to it.
STEP 2
Press the 'Start conversion' button, and MP4 to AU conversion will start.
STEP 3
As soon as the 'Download' button appears, download your AU video files.
What is a MP4 file?
MPEG-4 Part 4, known as MP4, is one of the most popular digital multimedia containers. MP4 is an international standard for audio-visual coding developed by Moving Picture Experts Group (MPEG). It is mostly used for audio and video, but it can store other data such as subtitles and still images as well. MP4 extension uses AAC compression and separates audio and video compression. The MP4 format is used for streaming video on the Internet. That’s why a wide range of video programs and various hardware devices support this file format. The most popular ones are Microsoft Windows Media Player, Nullsoft Winamp, VideoLAN VLC media player, MPlayer, Apple QuickTime Player, Apple Music, Google Drive, etc.
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.
Our converter allows you to change MP4 to any other existing video file
MP4 TO 3G2, MP4 TO 3GP, MP4 TO 3GPP, MP4 TO AVI, MP4 TO CAVS, MP4 TO DV, MP4 TO DVR, MP4 TO FLV, MP4 TO M2TS, MP4 TO M4V, MP4 TO MKV, MP4 TO MOD, MP4 TO MOV, MP4 TO MPEG, MP4 TO MPG, MP4 TO MTS, MP4 TO MXF, MP4 TO OGG, MP4 TO RM, MP4 TO RMVB, MP4 TO SWF, MP4 TO TS, MP4 TO VOB, MP4 TO WEBM, MP4 TO WMV, MP4 TO WTV and MP4 TO MP4.
With our free tool, you can also convert AU to any other video file
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