Free Online AU to GSRT Converter
AU
to
GSRT
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.
GSRT
Grandstream ring-tone files
Grandstream ring-tone files. Whilst this file format can contain A-Law, μ-law, GSM, G.722, G.723, G.726, G.728, or iLBC encoded audio, SoX supports reading and writing only A-Law and μ-law.
How To Convert AU to GSRT

Step 1: Upload Files
Click the upload button or drag and drop your AU files into the upload area.

Step 2: Convert File
Click "Convert" and wait for conversion done

Step 3: Download
Download the converted GSRT file