Free Online AU to AMR Converter

Convert AU files to AMR online for free
AU
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AMR

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.

AMR

Adaptive Multi Rate

This format was originally intended for voice compression and is able to change the bit rates of encoded audio data. AMR is actively used for encoding and decoding voice while its being transmitted over network channels. The format allows one to consider network capacity and adapt it to channel loads. Due to this, the voice quality is practically undiminished.
How to Convert AU to AMR

Step 1: Upload Files

Click the upload button or drag and drop your files into the upload area. We support various file formats for conversion.

Step 2: Select Format

Choose your desired output format from the available options. The conversion will be automatically configured for optimal results.

Step 3: Download

Once the conversion is complete, your converted files will be ready for download. Click the download button to save your files.

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