Extended Bitstream Information Parameters
Dolby® DP570 Multichannel Audio Tool User’s Manual 101
D.7.3 Lt/Rt Surround Downmix Level
Thisparameterindicatesthelevelshiftappliedtothesurroundchannelswhen
downmixingtoanLt/Rtoutput.Itsoperationissimilartothesurrounddownmixlevelin
theuniversalmetadata.
D.7.4 Lo/Ro Center Downmix Level
ThisparameterindicatesthelevelshiftappliedtotheCenterchannelwhenaddingtothe
LeftandRightoutputs���asaresultofdownmixingtoanLo/Rooutput.WhenExtendedBSI
parametersareactive,thisparameterreplacestheCenterDownmixLevelparameterinthe
universalparameters.
D.7.5 Lo/Ro Surround Downmix Level
Thisparameterindicatesthelevelshiftappliedtothesurroundchannelswhen
downmixingtoanLo/Rooutput.WhenExtendedBSIparametersareactive,thisparameter
replacestheSurroundDownmixLevelparameterintheuniversalparameters.
Table D-23 Lt/Rt Surround Downmix Level Settings

Lt/Rt Surround Downmix

Level

0.841(–1.5dB)
0.707(–3.0dB)
0.595(–4.5dB)
0.500(–6.0dB)
0.000(–999dB)
Table D-24 Lo/Ro Center Downmix Level Settings

Lo/Ro Center Downmix

Level

1.414(+3.0dB)
1.189(+1.5dB)
1.000(0.0dB)
0.841(–1.5dB)
0.707(–3.0dB)
0.595(–4.5dB)
0.500(–6.0dB)
0.000(–999dB)
Table D-25 Lo/Ro Surround Downmix Level Settings

Lo/Ro Surround Downmix

Level

0.841(–1.5dB)
0.707(–3.0dB)
0.595(–4.5dB)
0.500(–6.0dB)
0.000(–999dB)