D-BOX is a technology that allows seats to be controlled.
Documentation :
D-BOX and 4DX are two different technologies that share the same goal: enhance immersion during a screening by using external effects (such as moving the seats) :
The D-BOX track is embedded within a standard audio track on a specific channel, thus within MainSound.
Extension: Using ExtensionMetadata tag in CompositionMetadata section:
<CompositionMetadataAsset xmlns="http://www.smpte-ra.org/schemas/429-16/2014/CPL-Metadata">
(...)
<!-- DBOX -->
<ExtensionMetadata scope="http://www.d-box.com/technical_notes/124-915-0005">
<Name>D-BOX Enabled</Name>
<PropertyList>
<Property>
<Name>D-BOX Motion Code Primary Stream</Name>
<Value>true</Value>
</Property>
<Property>
<Name>D-BOX Motion Code Secondary Stream</Name>
<Value>true</Value>
</Property>
</PropertyList>
</ExtensionMetadata>
(...)
</CompositionMetadataAsset>
Integration of reference to D-BOX in MainSoundConfiguration section, in CompositionMetadata section:
<CompositionMetadataAsset xmlns="http://www.smpte-ra.org/schemas/429-16/2014/CPL-Metadata">
(...)
<MainSoundConfiguration>71/L,R,C,LFE,Lss,Rss,-,-,-,-,Lrs,Rrs,DBOX,DBOX2,-,-</MainSoundConfiguration>
(...)
</CompositionMetadataAsset>
Note that this metadata is for informational purposes only, the data in Configuration Audio section are also in the MXF.
Surprisingly, D-BOX did not choose to use a separate MXF specifically for the data useful to D-BOX, for example by using an AuxData in the CPL.
The data useful to D-BOX will be embedded into a standard MXF containing the film’s audio tracks (MXF KLV Sound). The data will be on a track inside this MXF. This MXF will be the one used for the MainSound in the CPL.
You will find all information related to D-BOX specific MXF & KLV in this chapter.
