Free Online M4R to AU Converter

M4R
to
AU

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.

AU

Sun Microsystems AU files

AU is a file extension for a sound file format belonging to Sun, NeXT and DEC and used in UNIX. The AU file format is also known as the Sparc-audio or u-law fomat. AU files contain three parts: the audio data and text for a header (containing 24 bytes) and an annotation block.
How To Convert M4R to AU

Step 1: Upload Files

Click the upload button or drag and drop your M4R files into the upload area.

Step 2: Convert File

Click "Convert" and wait for conversion done

Step 3: Download

Download the converted AU file

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