The extensions .aac, .m4a, and .m4b refer to audio files compatible with a whole range of Apple players and multimedia devices. These formats are, however, incompatible with many other audio players and editors. Therefore, if you need to work with this kind of files, it's very advisable that you convert them first to a more Windows-friendly format, such as MP3 or WAV.
Free M4a to MP3 Converter is a handy app that does exactly that – it converts MPEG4-based audio files into MP3 or WAV formats.
The program offers a simple though uncolored user interface, whose visual design leaves a lot to be desired. Besides, the program's main window includes a series of shortcuts whose only purpose is encouraging you to install and/or buy other programs from ManiacTools. It allows you to create a conversion list, as the application supports batch processing. Besides, you can specify an output folder and select an output format between MP3 and WAV. If you are an expert user, you may want to apply a more advanced configuration to your resulting files, though. Free M4a to MP3 Converter allows you to tweak the output bit rate, sampling frequency, and the number of audio channels for the MP3 format only. Unfortunately, there are no configurable parameters for the WAV format.
But Free M4a to MP3 Converter does more than simple audio conversion. This tool is also capable of extracting the audio stream from video files in compatible formats, such as 3GP or MP4. Finally, I should mention that the program provides highly fast conversion speeds, and that its interface supports 15 popular languages. In a nutshell, Free M4a to MP3 Converter is a simple and easy-to-use audio converter that basically allows you to convert MPEG4-based audio files into MP3 or WAV formats in an easy and fast way.