Figure 20From: An Overview of the Coding Standard MPEG-4 Audio Amendments 1 and 2: HE-AAC, SSC, and HE-AAC v2Structure of the SSC encoder (left) and decoder (right) extended with PS. The PS encoder generates a down-mix and PS parameters. The resulting down-mix is subsequently encoded using a mono SSC encoder. The resulting mono bit stream and the PS parameters are combined into a single output bit stream. At the decoder side, the mono SSC decoder generates a time-domain down-mix signal, which is converted to stereo by a PS decoder based on the transmitted PS data.Back to article page