Dolby Laboratories Multichannel Audio Tool DP570 - Manual (Page 117)

Extended Bitstream Information Parameters
Dolby ® DP570 Multichannel Audio Tool User’s Manual 101
D.7.3 Lt/Rt Surround Downmix Level
This parameter indicates the level shift applied to the surround channels when
downmixing to an Lt/Rt output. Its operation is similar to the surround downmix level in
the universal metadata.
D.7.4 Lo/Ro Center Downmix Level
This parameter indicates the level shift applied to the Center channel when adding to the
Left and Right outputs as a result of downmixing to an Lo/Ro output. When Extended BSI
parameters are active, this parameter replaces the Center Downmix Level parameter in the
universal parameters.
D.7.5 Lo/Ro Surround Downmix Level
This parameter indicates the level shift applied to the surround channels when
downmixing to an Lo/Ro output. When Extended BSI parameters are active, this parameter
replaces the Surround Downmix Level parameter in the universal parameters.
Table D-23 Lt/Rt Surround Downmix Level Settings
Lt/Rt Surround Downmix
Level
0.841 (–1.5 dB)
0.707 (–3.0 dB)
0.595 (–4.5 dB)
0.500 (–6.0 dB)
0.000 (–999 dB)
Table D-24 Lo/Ro Center Downmix Level Settings
Lo/Ro Center Downmix
Level
1.414 (+3.0 dB)
1.189 (+1.5 dB)
1.000 (0.0 dB)
0.841 (–1.5 dB)
0.707 (–3.0 dB)
0.595 (–4.5 dB)
0.500 (–6.0 dB)
0.000 (–999 dB)
Table D-25 Lo/Ro Surround Downmix Level Settings
Lo/Ro Surround Downmix
Level
0.841 (–1.5 dB)
0.707 (–3.0 dB)
0.595 (–4.5 dB)
0.500 (–6.0 dB)
0.000 (–999 dB)