How to play an AU file of Sun Microsystems that is not supported by your music players? The best solution is to use an effective AU to MP3 converter and change the AU format into a more common one like MP3 for better compatibility. Here you can free download a handy AU file converter and follow the conversion guide below: https://www.videoconverterfactory.com/download/hd-video-converter-pro.exe
Updated on Jan 28, 2023
Convert AU format sound to MP3
Recently, some of my friends mentioned that they had some songs of huge size that could not be opened or played by their portable players. After a further investigation into the samples they sent to me, I found that it was the AU file format that caused the failed playback. AU is an audio file format similar to MP3 and WMA although it is relatively rare to public. It is playable on some certain players but it's not compatible with our common mobile devices and portable players.
If you want to play music, songs or other audio files in AU file format, you will need to resort to a practical AU audio converter and convert the files to MP3 or other common audio formats.
HD Video Converter Factory Pro, a multifunctional audio and video converter, is capable of converting the original media file to more than 500 formats and codecs. As for AU format, you can use this convenient software to convert it to the commonest audio formats like MP3, WMA, WAV, FLAC, AAC and so on. It is clean, safe and fast, in the course of conversion, original quality can be saved to the greatest extent. HD Video Converter Factory Pro can also be used as a simple audio compressor to reduce audio file size to save more storage space on your portable devices.
Free download the best audio converter to convert AU to WAV, MP3, and other common audio formats for a better compatibility with your portable gadgets.
Launch HD Video Converter Factory Pro and click on "Converter" on the main screen. Next, select "Add Files" to load AU audio files into the Video Converter interface, or just drag the files into the program. Then, preset a destination folder for the output file at the bottom.
Tips. Batch conversion is supported for you to convert multiple files simultaneously.
Add an AU file
Click "Output format" on the right side. Go to the “Audio” category and choose MP3 as the output profile.
Tips. You can modify the output audio settings in the “Parameter settings,” which includes audio bitrate, sample rate, channel, audio encoder and volume.
Choose the desired output format
Click on "Run" to start the conversion. Within a few seconds you will find the output MP3 audio file in the folder you preset before.
HD Video Converter Factory Pro is not only a good AU MP3 converter, but also a practical audio cutter and merger that can crop any music file and combine song tracks without effort. You can merge audio files by clicking on "Merge" button and cut audio by hitting the "Clip" icon.
The .AU extension is an audio format associated with the Sun Microsystems. AU files store their data in three parts: a 24-bytes header, a variable length annotation block, and the actual audio content. These are audio files used primarily on Sun or other Unix-based devices and have been adopted by some audio programs like Adobe Audition, Java and QuickTime. Because the web server on the internet is based on UNIX at early time, AU is widely applied as an audio file on the internet nowadays.
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