Sony Ericsson DFP-D3000 - Manual (Page 26)

6-6 DFP-3000
6.11 To set the surround channel delay and enable it for
each Preset, bring up the Preset Configuration
screen by selecting the Preset Configuration
option under the Presets item in the main screen
menu bar. This screen allows you to select each
Preset, make a level trim (to balance the relative
level of each Preset), set a surround delay, and set
the subwoofer low pass filter (LPF) frequency for
that Preset.
In the latest versions of software you can also set
surround delay and subwoofer LPF frequency at the
main screen, according to the output channel selected.
The surround channel delay can be set with
elaborate science based on SMPTE 202M. How-
ever, an easy rule-of-thumb approach is to set the
milliseconds of delay for optical sources (NR2) to
equal the length of the theatre (in feet) +10. For
digital sources (SDDS) it should be set to 60 % of
the optical surround delay.
6.12 If a cinema digital audio system is connected to
one of the AUX inputs, you must set its corre-
sponding subwoofer input level offset. The
playback level of the subwoofer in today’s cinema
digital audio systems is offset by 10 dB. To access
the AUX Input Calibration screen, select the
AUX Inputs option from the A-chain item in the
main screen menu bar. Click to select the correct
offset.
Note that the graphic and parametric equalizer settings adjust for the frequency response of each
of the loudspeaker cabinets in the theatre. This means they affect the output from all Preset
inputs. The output channel level trims, including the analog subwoofer channel level trim, also
affect all Presets. These settings are retained in the DFP-D3000’s non-volatile memory as a
single set of overall adjustments to the playback system. Other settings, such as subwoofer low
pass filter frequency and surround speaker delay, may be unique to each format or signal source.
These values are stored as individual settings for and within each of the eight Presets.