FAAD2 (Freeware Advanced Audio Decoder) is a MPEG-2, MPEG-4 AAC decoder.

FAAD2 is the fastest ISO AAC audio decoder available and can be used with
DRM (Digital Radio Mondiale), and supports HE (High Efficiency), Main,
LC, LD, LTP, PS (Parametric Stereo) AAC files.

WWW: https://github.com/knik0/faad2