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Figure 20 | EURASIP Journal on Audio, Speech, and Music Processing

Figure 20

From: An Overview of the Coding Standard MPEG-4 Audio Amendments 1 and 2: HE-AAC, SSC, and HE-AAC v2

Figure 20

Structure 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.

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