theFrontend 0.0.0.2 is an audio conversion program that´s free, easy to use and includes standard configurations for novice users and also xml-based configurations and a complete interface for those more expert.
theFrontend supports the following entry formats: WAV, MP1, MP2, MP3, MPC, MPP, MP+, MP4, M4A, AAC, OGG, FLAC, WV, APE, MAC, OFR, TTA, and the following exit formats: WAV, MP3, MPC, AAC, M4A, MP4, OGG, FLAC, WV, APE, OFR, and TTA.
It operates with the following command line tools: SSRC, LAME, MPPENC, MPPDEC, FAAC, FAAD, OGGENC, OGGDEC, FLAC, WAVPACK, WVUNPACK, MAC, OFR, TTAENC, NEROAACDEC, NEROAACENC, etc.