Thompson ViBE EM4000, User Manual

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Chapter 4 ’Web Browser Interface’ — Settings
92 ViBE EM4000 — Release 1.10
User Manual — 46073586AB02
On the Dolby page, click the Metadata Parameters #2 tab to display the
2nd Dolby
®
Metadata configuration page.
Preferred Stereo Downmix
Mode This parameter, enabled in 5.0 or 5.1 mode, is used to
select either the Lt/Rt or Lo/Ro downmix in a decoder
with stereo outputs. Choice between:
Not indicated,
Lt/Rt Preferred , Lo/Ro Preferred .
Lt/Rt : Left total/Right total. The Lt/Rt downmix totals the
Surround channels and adds them in-phase to the Left
channel and out-of-phase to the Right channel. This
enables a Dolby
®
Surround Pro Logic decoder to
rebuild the L/C/R/S channels for a Pro Logic home
theater.
Lo/Ro : Left only/Right only. The Lo/Ro downmix
discretely adds the Left and Right Surround channels to
the Left and Right speaker channels, respectively. This
preserves stereo separation for stereo-only monitoring
and produces a mono-compatible signal.
The LFE channel is not included in any downmixes.
Default value:
Lt/Rt Preferred .
Lt/Rt Center Downmix
Level This parameter, enabled in 5.0 or 5.1 mode, is used to
select the level shift applied to the Center channel when
adding to the left and right outputs as a result of
downmixing to an Lt/Rt output. Choice between:
1.414 (+3.0 dB) , 1.189 (+1.5 dB) , 1.000 (0.0 dB) ,
0.841 (-1.5dB) , 0.707 (-3 dB) , 0.595 (-4.5 dB) , 0.500
(-6.0dB). Default value: 0.707 (-3 dB) .
Lt/Rt Surround Downmix
Level This parameter, enabled in 5.0 or 5.1 mode, is used to
select the level shift applied to the Surround channels
when downmixing to an Lt/Rt output. Choice between:
0.841 (-1.5dB) , 0.707 (-3 dB) , 0.595 (-4.5 dB) , 0.500
(-6.0dB) . Default value: 0.707 (-3 dB) .
Lo/Ro Center Downmix
Level This parameter, enabled in 5.0 or 5.1 mode, is used to
select 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. Choice between:
1.414 (+3.0 dB) , 1.189 (+1.5 dB) , 1.000 (0.0 dB) ,
0.841 (-1.5dB) , 0.707 (-3 dB) , 0.595 (-4.5 dB) , 0.500
(-6.0dB) . Default value: 0.707 (-3 dB) .
Lo/Ro Surround Downmix
Level This parameter, enabled in 5.0 or 5.1 mode, is used to
select the level shift applied to the Surround channels
when downmixing to an Lo/Ro output. Choice between:
0.841 (-1.5dB) , 0.707 (-3 dB) , 0.595 (-4.5 dB) , 0.500
(-6.0dB). Default value: 0.707 (-3 dB) .