@Dj Urko It is surround sound upmixer; properly configured it upmixes audio to all channels, including side/rear channels. I use it for upscaling stereo-5.1 on my audio system.
check those settings:
For 5.1
Code:
<endpoint type="internal_speaker" brand="Generic" model="Default" operating_mode="normal" fs="48000" total_count="6" front_count="3" side_count="2" height_count="0" has_subwoofer="1">
Also check this:
Code:
<surround-decoder-enable value="1"/>
All previous settings such as headphone surround virtualiser, dialog enhancer, volume leveler, graphic equaliser is present in xml.
Only missing is three additional Intelligent Equaliser presets.
I stopped using PCEE4 for audio processing because is has a defect that I cannot personally accept: It cannot handle float audio data properly; audio samples louder than 0dBFS clips with PCEE4. This bug was removed in all later versions of Dolby software.
@ReconNyko All Dolby software does upmixing. PCEE3 and earlier uses Dolby ProLogic. PCEE4 and later versions use
Dolby Next Gen surround Decoder. This decoder is the basis for current atmos upmixing on receivers.