Convert FLV to AU
Fast, free FLV to AU conversion — works in any browser
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flv
Flash Video
| File extension | .flv |
|---|---|
| File category | video |
| Programs | Microsoft Windows Photo Gallery Viewer VideoLAN VLC Media Player Windows Media Player FFDShow |
| Tech description | https://en.wikipedia.org/wiki/Flash_Video |
| MIME type | |
| Developer | Adobe Systems |
FLV file is a bitstream created for video transmission over the Internet. Audio information in flv files is usually encoded in mp3, but other formats are also possible. Being one of the oldest flash-formats, FLV is very popular because of its simplicity, although it is inferior to more modern formats in quality, especially when using a low bit rate. Although the format is primarily intended for streaming video, it can also be used to store information locally.
au
AU format for reliable data storage
| File extension | .au .snd |
|---|---|
| File category | audio |
| Programs | VLC media player Audacity MPlayer Xine Sox |
| Tech description | https://en.wikipedia.org/wiki/Au_file_format |
| MIME type | audio/basic audio/au |
| Developer | Sun Microsystems |
This audio format was developed by Sun Microsystems. It is intended for storing audio files; the file itself consists of three components: the header, the annotation unit, and the audio file itself. What distinguishes this format is the small file size, due to which its sound quality is low. It can be converted into other formats, such as mp3 or MPEG. Although this format is mostly used on personal computers that are powered by operating systems Sun or Unix, AU files can also be opened using other audio players.
FAQ
How to convert AU to FLV?
Upload your AU file, select FLV as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert AU to FLV?
Most AU files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert AU files online?
Yes. All uploaded AU files and converted FLV results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert AU on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the AU file and convert to FLV without installing any app.


