Dolby Laboratories DP570 Stereo System User Manual


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102 Dolby
®
DP570 Multichannel Audio Tool User’s Manual
A Guide to Dolby Metadata Extended Bitstream Information Parameters
D.7.2 Lt/Rt Center Downmix Level
ThisparameterindicatesthelevelshiftappliedtotheCenterchannelwhenaddingtothe
leftandrightoutputsasaresultofdownmixingtoanLt/Rtoutput.Itsoperationissimilar
tothecenterdownmixlevelintheuniversalmetadata
D.7.3 Lt/Rt Surround Downmix Level
ThisparameterindicatesthelevelshiftappliedtotheSurroundchannelswhen
downmixingtoanLt/Rtoutput.Itsoperationissimilartothesurrounddownmixlevelin
theuniversalmetadata
D.7.4 Lo/Ro Center Downmix Level
ThisparameterindicatesthelevelshiftappliedtotheCenterchannelwhenaddingtothe
leftandrightoutputsasaresultofdownmixingtoanLo/Rooutput.WhenExtendedBSI
parametersareactive,thisparameterreplacestheCenterDownmixLevelparameterinthe
universalparameters
Table D-22 Lt/Rt Center Downmix Level Setting
Lt/Rt Center Downmix
Level Setting
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-23 Lt/Rt Surround Downmix Level Setting
Lt/Rt Surround Downmix
Level Setting
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 Setting
Lo/Ro Center Downmix
Level Setting
1.414(+3.0dB)
1.189(+1.5dB)
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