Hewbo Free Audio Converter is an audio conversion tool for Mac. It can help you convert video and audio to multiple audio formats, including MP3, MP2, OGG, WMA, WAV, AAC, AC3, AU, MMF, and M4A for free.
The application is capable of extracting audio from SD and HD video files including AVI, MPEG, WMV, MP4, FLV, MKV, H.264/MPEG-4 AVC, AVCHD, WebM (VP8), DivX AVI, XviD AVI, 3GP, 3G2, TS, M2TS, MOV.