4 Outline description

26.4053GPPEncoder specification parametric stereo partEnhanced aacPlus general audio codecGeneral audio codec audio processing functionsRelease 17TS

This TS is structured as follows:

Section 5.2 describes the hybrid QMF filterbank and its integration in the Parametric Stereo system.

Section 5.3 describes the hybrid QMF filterbank and its integration in the Parametric Stereo system.

Section 5.4 describes the parameter estimation algorithms and quantization.

Section 5.5 describes how to convey the estimated parameters in the bitstream.

Section 5.6 and section 5.7 describes preparation of the signal that should feed the aacPlus mono encoder after the Parametric Stereo encoding.