1. Click "Choose Files" button and select your AMR files you would like converted.
2. Click on the “Convert to AU” button to start the conversion.
3. When the status change to “Done” click the “Download AU” button
AMR stands for Adaptive Multi-rate Compressed Audio Format and is commonly used by 3G cell phones to store voice recordings, as well as MMS messages. These audio files are compressed using Ericsson's ACELP algorithm which has since been adopted by the 3GPP for use within mobile networks. AMR files can be opened on various platforms, with QuickTime Player for Apple ...
What is an AU audio file? An AU (Sun Audio) file was originally developed by Sun Microsystems for use with their Sun Operating System and became widely popular as it became widely adopted across platforms and browsers such as SPARC, NeXT computer workstations, early websites, Unix-based platforms and Java systems. At first these files only stored representations of their native ...
Upload a AMR file, click "Convert", and use additional options to quickly modify its contents before downloading the final AU file after processing has completed.
Our AMR to AU converter works on Windows, Mac OS, Linux, iOS and Android systems alike - our servers automatically process each file without requiring you to install plug-ins or applications!
We guarantee 100%% of the privacy and have no access to your files once uploaded/converted, making them inaccessible by anyone and completely protecting them.