Emicsoft M4R Converter is a feature-rich utility that you can use to convert audio tracks to M4R format, as well as to extract the audio stream from video files and save it to the same format. It offers support for many popular file types, including MP3, AVI, MKV, 3GP, FLAC, WMA, WAV, MPG and VOB. Apart from M4A, it can create sound files with the AAC, AC3, FLAC, MP3 and other types.

The installation procedure does not take a long time to finish. As far as the interface is concerned, Emicsoft M4R Converter is wrapped in a normal window with a well-organized structure, where you can import audio and video tracks using either the file browser or drag-and-drop support.

Batch processing is possible, which means that you can work with multiple files at once to reduce overall task time.

Clips can be previewed in the main window, and you can capture frames to save them to image files. If the video contains multiple audio tracks and subtitle streams, the preferred ones can be selected for conversion.

Default settings may be applied to proceed with the encoding job, after indicating the output format and destination. Otherwise, you can customize audio properties when it comes to the encoder, channel mode, sample rate and bit rate. New profiles can be created, while existing ones may be overwritten.

Instead of creating a single audio track from each file, Emicsoft M4R Converter gives you the possibility of joining together all objects into a single item. What's more, tracks may be trimmed into smaller pieces by pointing out the start and end time values or positions.

It is possible to modify the default output and snapshot folders, image type used for snapshots (JPEG, GIF, BMP), specify an automatic post-task action (shut down PC), as well as to limit the CPU usage. There are no other noteworthy options available.

Encoding tasks were carried out rapidly in our tests, while CPU and RAM consumption was minimal. The application managed to create quality audio tracks. No error dialogs were shown and the tool did not hang or crash. Thanks to its rich, yet intuitive options, Emicsoft M4R Converter should meet the requirements of most users when it comes to audio conversion.