faac

MPEG-2 and MPEG-4 AAC audio encoder

FAAC (Freeware Advanced Audio Coder) is an MPEG-2 and MPEG-4 AAC Audio encoder. FAAC currently supports MPEG-4 LTP, MAIN and LOW COMPLEXITY object types and MAIN and LOW MPEG-2 object types. It also supports multichannel and gapless encoding.