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EURASIP Journal on Audio, Speech, and Music Processing
Figure 6 | EURASIP Journal on Audio, Speech, and Music Processing

Figure 6

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

Figure 6

Block scheme of the SBR decoder. The received bit stream is input to the core decoder decoding the low-band audio signal, and providing the SBR decoder with the SBR relevant bit stream data. The SBR decoder performs a QMF analysis of the low-band signal which is subsequently used for the HF Generation providing a high-band signal. The high-band is envelope adjusted and additional signal components are added. Finally, the output signal is obtained by a QMF synthesis filter bank.

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