Reconstructing AAC CPE
Jump to navigation
Jump to search
Part of Understanding AAC
This page describes the process of reconstructing PCM data based on the decoded CPE parameters in an AAC bitstream. For the moment, this description focuses on what is necessary to reconstruct low complexity (LC) profile data.
Reconstruction Process
specrec.c:reconstruct_channel_pair() -specrec.c:allocate_channel_pair() -specrec.c:inverse_quantization() -specrec.c:apply_scalefactors() -specrec.c:quant_to_spec() -pns.c:pns_decode() -pns.c:generate_random_vector() -ms.c:ms_decode() -is.c:is_decode() -ic_predict.c:ic_prediction() (main profile) -ic_predict.c:pns_reset_pred_state() (main profile) -(processing that is specific LTP