ConverterFactory is a free & online convert AU to M4R file in the cloud, you can easily and quickly use our convert services via browser for PC, mobile or pad, and we also support convert of over 140+ audio, video, document, image and more file formats.
AU file format is a simple audio file format used by Sun Microsystems and other UNIX-based systems. It is an uncompressed audio file format which stores audio data in a linear PCM format. It is used for a variety of applications, including sound effects, music, voice recordings, and other audio data.
M4R is a file format for storing ringtones on Apple's iPhone. It is based on the MPEG-4 Part 14 (MP4) container format and is used to save ringtones for use on the iPhone. It is a compressed audio file format, which means that it takes up less storage space than other audio file formats.
Before preparing to convert au documents, we need to choose a computer, mobile phone, PAD comes with Chrome, Edge, Safari and other browsers, and enter https://converterfactory.com/au-to-m4r website to open the au to m4r conversion page.
STEP 1
Choose AU files to upload to ConverterFactory website for conversion
STEP 2
Select the target output M4R format for conversion
STEP 3
Download the converted M4R file