4 Outline description

26.4023GPPAdditional decoder toolsEnhanced aacPlus general audio codecGeneral audio codec audio processing functionsTS

This TS is structured as follows:

Section 5 gives a detailed description of the error concealment algorithms in the Enhanced aacPlus decoder. In Section 5.1 the error concealment of the AAC is described, and in section 5.2 the error concealment of the SBR algorithm is outlined.

Section 6 gives a detailed description of how stereo SBR parameters are down mixed to mono SBR parameters.

Section 7 gives a detailed description of the additional downsampler tool, enabling the Enhanced aacPlus codec to give output sampling rates of 8 and 16kHz, disregarded the sampling rate used for the coded signal.