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AU to M4R Converter

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.

or drop au here
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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.

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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.

How to convert AU to M4R

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

Click the "Choose Files" button to select the AU file you need to convert, and you can choose to drop the AU file directly to the ConverterFactory website to convert page when you operate the conversion on your computer. Click the drop-down arrow to the right of the “Choose Files” button, ConverterFactory supports online conversion of web links or Dropbox files.
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STEP 2

Select the target output M4R format for conversion

Click the drop-down selection box next to "Convert to", select the target file format to be converted, and then click the "Convert" button to convert. If you need to convert more than one file, you can click the "Add More Files" button, add multiple files to be converted, and then click the "Convert" button for batch conversion.
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STEP 3

Download the converted M4R file

File conversion is processed in the cloud, and the progress of file conversion is divided into four steps: "Encryption Verification>>File Upload>>Conversion in Progress>>Conversion Completed", after the conversion is completed, click the "Download" button to download the converted file.
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