Free Audio Converter converts different audio file formats, including mp3, wav, m4a, aac, wma, ogg. Each format is provided with a corresponding profile kit and a preset editor in order to make a personalized preset. So you can create new presets, delete and edit the old ones (change the current parameters). Free Audio Converter goes with both a single and a batch mode support. Supports XP and Vista. Free Audio Converter contains no spyware or adware. It's clearly free and absolutely safe to install and run.