10210.4 USING THE GRAPHICAL INTERFACELISTENING FORMAT SELECTIONTo activate a surround up-mixer:1. Click on the “IN sources” menu item ofthe lateral menu to go to the Sourcespage;2. Select a Listening Format in the dropdown list.Figure 68: The surround up-mixer optionDECODER CONFIGURATIONTo configure the decoder parameters for the Dolby,DTS and Auro-3D decoders:1. Click on the “IN sources” menu item of thelateral menu to go to the Sources page;2. In the Sources page, click on the Managebutton in the Decoders section. This givesyou access to the decoders settingsdescribed below.Figure 69: Accessing the decoders setup from the Sources page