Faad2 is the fastest ISO AAC audio decoder available. Faad2 correctly decodes all MPEG-4 and MPEG-2 MAIN, LC (Low Complexity), HE (High Efficiency), LTP (Long Term Prediction), LD (Low Delay), and ER (Error Resiliency) object type AAC files. Faad2 includes code for SBR (HE AAC) decoding.