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DV137
E-18
Speaker set-up
This menu screen allows you to specify the speaker conguration that is connected to the
analogue ouputs of your DVD player. (If you are using the HDMI or SPDIF audio outputs,
this speaker conguration should be performed in your surround-sound receiver.) It is
important that this conguration reects accurately the actual situation, otherwise audio
quality may be severely compromised.
The speakers are indicated as follows:
Front L/R This is the setting for the ‘Front’ speakers
Centre This is the ‘Centre’ speaker setting.
Surround
L/R
This is the setting for the ‘Surround’ speakers (normally next to or
behind the user).
Subwoofer This is used to indicate whether a subwoofer is connected.
For each speaker, the player can be congured to send either audio with the full frequency range
of the source material, or with a reduced frequency range. The reduced frequency range option is
used normally when ‘satellite’ speakers are used for the surround channels; these cannot handle low
frequency information. Full frequency speakers are commonly called ‘Large’ speakers, with reduced-
range speakers given the name ‘Small’. Low frequency information is re-routed from ‘small’ speakers to
‘large’ speakers, or to the subwoofer (depending on the speaker conguration).
NOTES:
1. Any speaker that is not connected should be identied by selecting ‘Not Present’ for
that speaker.
2. Although the DV137 is very exible in the speaker congurations it can handle, some
restrictions have been applied. For example, if no subwoofer is present, then it is not
possible to congure the Front speakers to be ‘Small’ since there would be nowhere
to redirect the low frequency information.
Sub with stereo
This setting is relevant to 2-channel source material only (such as CDs). It controls whether the
low frequency information is redirected to the subwoofer, or not. This item can be changed only if a
subwoofer is specied as present in the system.
Not used No redirection of low-frequency information occurs; all the audio is sent to the
Front speakers.
Bass
redirected
Low-frequency information is redirected to the subwoofer, with the remaining
(higher-frequency) information sent to the Front speakers.
Bass
duplicated
All the audio is sent to the Front speakers. In addition, the low-frequency
information is duplicated to the subwoofer.
Crossover Frequency
This setting denes the frequency at which bass-redirection begins. Frequencies below this level are
redirected from ‘small’ speakers to the Fronts or to the subwoofer; frequencies above this level are not
redirected. The redirection frequency is the same for all the speakers in a system.
The optimum crossover frequency depends on the characteristics of your speaker set-up, and is best
determined by experimentation. We suggest you start at 100Hz.
Delay set-up
The delay set-up menu page allows two different types of delay to be congured: those
due to speaker positioning and those due to video post-processing.
Speaker positioning
The relative positioning of speakers within a room (particularly a large room) may
mean that sound from some speakers arrives at the listener later than sound from
others. By altering the delay settings for the different speakers, this difference in
arrival time can be reduced or eliminated.
When setting the delay, it should be imagined that the listener is sitting in a circle of
the speakers; the delay indicates the distance of the speaker from the listener.
Measurement Units
Your DV137 allows you to choose the measurement units that you feel most comfortable with:
centimetres or feet.
Delays
Delays for the front, centre and surround speakers can be set using the associated sliders.
Specifying the different speaker distances will cause a slight delay to be added to the output of the
closest speakers so that the sound from all the speakers will arrive at the listener at the same time.
Note that these delay sliders affect only the analogue and the HDMI outputs (although the HDMI
output is affected only when multi-channel uncompressed audio is requested by the receiver, not
otherwise). The SPDIF digital audio output is never affected by changes here. If you are using the
SPDIF connection between the DV137 and your receiver, set all of the delays to zero.