Figure 21From: An Overview of the Coding Standard MPEG-4 Audio Amendments 1 and 2: HE-AAC, SSC, and HE-AAC v2Structure of the QMF-based PS decoder. The signal is first fed through a hybrid QMF analysis filter bank. The filter-bank output and a decorrelated version of each filter-bank signal is subsequently fed into the mixing and phase-adjustment stage. Finally, two hybrid QMF banks generate the two output signals.Back to article page