Dynamic Range Control; Advanced Dolby/Dts Adjustments; Dts-Hd Speaker Re-Map - Cambridge Audio azur 650R User Manual

Operating instructions continued

Dynamic range control

This setting controls the dynamic range of Dolby Digital or DTS movie
soundtracks by compressing the dynamics in four stages to limit the
difference in level between loud and quiet passages in the movie.
This can be a useful feature when watching movies late at night for instance.
Four settings are possible:
DRC=0/4 No Compression (normal full dynamic range playback)
DRC=1/4
DRC=2/4
DRC=3/4
DRC=4/4 Greatest Compression (reduced dynamic range playback)
DRC can be accessed by the Dynamic button on the remote, DRC=0/4 etc is
displayed, pressing the button again moves to the next setting. When
finished make no adjustment for a few seconds and the 650R will save the
settings and exit the menu.
Note: DRC only works for Dolby Digital or DTS source material which supports
this feature.

Advanced Dolby/DTS adjustments

The first three adjustments affect Dolby Prologic II or IIx processing (or post-
processing) in Music mode only. Movie and Game modes where available are
preset as part of their specification to match the encoding or provide a
specific effect. These adjustments have no affect in these modes.
Advanced Dolby/DTS Setup
Panorama
Centre Width
Dimension
DTS HD Spkr Re-map : 1
Return To Menu
Panorama mode - A Prologic II/IIx mode that extends the front Stereo image
to the surround sound speakers for a more enveloping experience. This mode
can be either On or Off.
Centre Width - Allows gradual adjustment of the centre image from being
produced only by the Centre speaker (Setting 0) through levels of being
spread between the centre channel and Left and Right speakers to finally
being produced by the Front Left and Right speakers only (Phantom Centre,
Setting 7). Useful in optimising the Front/Centre/Right soundfield for best
integration of the 3 speakers. Best tuned by ear.
Dimension - Adjusts the soundfield to be gradually shifted from the front of
the room to the back to suit taste, speaker positioning and size of room.
Setting 0 has the image furthest forward, 6 furthest back.
All three adjustments are a matter of personal preference, experiment for the
settings that you prefer when you are using PLII or PLIIx decoding.

DTS-HD speaker re-map

As there is no "official" speaker layout for discrete 7.1 channel audio it could
be possible that the original master track of a 7.1 soundtrack was mastered
with a different speaker layout than the one being used in your home. DTS
have addressed this issue for DTS-HD Master Audio and High Resolution
Audio by including in the bitstream flags to tell the receiving AV Receiver
which of a 7 nominal 7.1 speaker layouts was actually used. By using special
DTS Speaker Remap algorithms the 650R is able to electronically
"reposition" the speakers (i.e. direct the audio propagation), so that the
playback matches the original encoded layout for the best possible sound
quality.
A second aim of this technology is that by re-purposing some of the 7.1
available channels it is possible to use some of them to do new things such
as adding a height element to the sound field.
24
: On
: 0
: 3
: [OSD]
The following digrams show the 7 possible e e ncoding schemes for reference.
The angles quoted refer to the angle from a nominal 0 degrees line through
the centre channel to each speaker either side right or left of that line.
Configurations 1 and 5 are variants of normal 7.1 setups whilst Configuration
6 can increase the available panning of the front channels.
Configurations 2,3,4 and 7 are less conventional and re-purpose some of the
available 7.1 channels to provide an extra height dimension to the sound field
in different ways. Please refer to the DTS website for more details on this new
technology.
Configuration 1 - 7.1 channel: L, C, R, LFE, Lss, Rss, Lsr, Rsr
Left (30°)
LFE
Left Surround Side (90°)
Left Surround Rear (150°)
Configuration 2 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lhs, Rhs
Left (30°)
LFE
Left Height Side (90°)
Left Surround (110°)
Configuration 3 - 7.1 channel: L, C, R, LFE, Ls, Rs, Cs, Oh
Center Over-Head
Left (30°)
LFE
Left Surround (110°)
Center Surround
Configuration 4 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lh, Rh
Left Height
Left (30°)
LFE
Left Surround (110°)
Center
Right (30°)
Right Surround Side (90°)
Right Surround Rear (150°)
Center
Right (30°)
Right Height Side (90°)
Right Surround (110°)
Center
Right (30°)
Right Surround (110°)
Center
Right Height
Right (30°)
Right Surround (110°)