Free Audio Converter

Free Audio Converter is an all-in-one audio converter and extractor, you can also convert files in batches. allowing you to both convert between different format audio files and extract audio from video files to mp3 aac formats. supports many video, high-definition (HD) video, and audio file types including AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4 AVC, AVCHD, MP3, WMA, WAV, AAC, FLAC, OGG, APE, among many others.
Key Features
Convert audio files to MP3 AAC format
Extract audio from video files to MP3 AAC formats
Support batch conversion
Very easy to use