Theta Digital Casablanca II, Руководство пользователя

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DIGI : Dialog normalization will be performed in the digital domain. Digital reduction of volume results in a loss
of resolution i.e. a 16 bit source can effectively be reduced to 15 bits or worse.
Press the A-D button to access Page 2 of the Dolby Digital set up submenu, which is shown in figure 44.
Figure 44 - Front Panel Display of the SETUP / INP Page 2 / DOLBY DIGITAL Page 2 Sub Menu
This submenu allows the user to adjust the center, individual surround speaker delays and levels and LFE when the
MODE is Dolby Digital only. When the Mode is anything other than Dolby Digital, all settings in this sub menu will have
no effect.
It is important to note that the level and delay settings in this sub menu are interactive, or relative to those in the main
SETUP / INP / LEVELS and SETUP / INP / DELAYS submenus. In other words values in this sub menu are added to, or
subtracted from those values in the SETUP / INP / LEVELS and SETUP / INP / DELAYS submenus. For example: if the
center level ( CLVL ) in this sub menu is set to –2 and the center level in the SETUP / INP / LEVELS submenu were set to
+3 , the overall center level, when the MODE for the currently selected input is Dolby Digital, would be +1 . This same
process applies to the delays. However, the Casablanca II does not support negative delays based on the theory that
even we at Theta cannot make time go backwards. Therefore, as an example, if the center delay in the
SETUP / INP / DELAYS submenu were set at 0 and in this Dolby Digital setup submenu, set at –1 , the overall center
delay would be 0 .
Note : If the incoming signal is Dolby 2.0 with a surround indication bit set at surround, and the 2CHEN mode set to
Circle the delay settings in the DELAYS sub menu are interactive with the ones in the CIRCLE SURROUND setup
submenu and not with those in the DOLBY DIGITAL setup submenu.
In this submenu, button # 1 offsets the center speaker’s delay [from the SETUP/INP/DELAYS ] when the MODE is set
to Dolby Digital, button # 2 offsets the center level, button # 3 offsets the surround left/right, sides and center surround
delay and button # 4 offsets the surround left/right, sides and center surround level.
Button # 5 controls the LFE gain setting for Dolby Digital sources. Dolby Digital sources usually contain an LFE (low
frequency effects) channel. This channel commonly contains sound effects such as explosions, but may also contain
soundtrack information. Casablanca II offers the user an
LFE
range of between
0
and
-30
for this setting, as well as
OFF . OFF may be useful for late night viewing or if there isn't a subwoofer / speaker capable of handling the low
frequencies contained in the LFE channel. 0 dB, the preferred setting, maintains the LFE setting in proper proportion to
the remaining five discrete channels. Any other setting lowers the normal LFE level, in dB, by the value set. A setting
other than 0 or OFF may be useful for late night viewing or if there isn't a subwoofer / speaker capable of handling the
full volume contained in the LFE channel.
When all settings are made, press the SETUP button 3 times returns the user to the INPUT SELECT menu.
Setup DTS
To access the DTS Setup sub menu shown in figure 45, press SETUP / INP / A-D / DTS .
Figure 45 - Front Panel Display of the SETUP / INP Page 2 / DTS Sub Menu