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AU to M4R

Online Convert AU to M4R Use OnlineConvert online. Free fast! No registration is required.

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How to convert AU to M4R?

Online AU to M4R, you can put the AU to M4R format on your computer, tablet or mobile phone without downloading any software!

Step 1

Upload AU file

Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2

Select 'M4R'

Select output M4R or any other format as the conversion result (click the Convert button)
Step 3

Download your AU file

After the conversion you can download your M4R file and upload it to Google Drive, Dropbox.

au : Audio File

AU is an audio file format, used on Sun and Unix systems.

m4r : MPEG 4 Ringtones Audio

M4R - is a digital multimedia container format used to store audio in mono channel mode. This format is suitable for store ringtones and it is widely used by Apple iPhone for its ringtones. Needless to say that M4R and M4A formats shares many similar features.
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