Speaker Set-Up; Delay Set-Up - Arcam DV139 Handbook

Speaker set-up

This menu screen allows you to specify the speaker configuration that
is connected to the analogue ouputs of your DVD player. (If you are
using the HDMI or SPDIF audio outputs, this speaker configuration
should be performed in your surround-sound receiver.) It is important
that this configuration reflects accurately the actual situation,
otherwise audio quality may be severely compromised.
The speakers are indicated as follows:
Front L/R
Centre
Surround
L/R
Subwoofer
For each speaker, the player can be configured 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 configuration).
NOTES:
1. Any speaker that is not connected should be identified by selecting 'Not Present' for
that speaker.
2. Although the DV139 is very flexible in the speaker configurations it can handle, some
restrictions have been applied. For example, if no subwoofer is present, then it is not
possible to configure 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 specified as present in the system.
Not used
Bass
redirected
Bass
duplicated
Crossover Frequency
This setting defines 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
configured: 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 DV139 allows you to choose the measurement units that you
feel most comfortable with: centimetres or inches.
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 DV139 and your receiver, set all of the delays to zero.
DV139
E-18
This is the setting for the 'Front' speakers
This is the 'Centre' speaker setting.
This is the setting for the 'Surround' speakers (normally
next to or behind the user).
This is used to indicate whether a subwoofer is connected.
No redirection of low-frequency information occurs; all the audio is sent to the
Front speakers.
Low-frequency information is redirected to the subwoofer, with the remaining
(higher-frequency) information sent to the Front speakers.
All the audio is sent to the Front speakers. In addition, the low-frequency
information is duplicated to the subwoofer.