Cambridge Audio AZUR 650R - Manual (Page 24)

24
Dynamic range control
This setting controls the dynamic range of Dolby Digital movie soundtracks by
compressing the audio 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.
Three settings are possible:
Auto – Compression is always applied for Dolby Digital and Dolby Digital Plus
soundtracks. The application and amount of compression to Dolby True HD
soundtracks is dictated by the soundtrack itself.
Off – No Compression (normal full dynamic range playback)
On – Compression is always applied for all Dolby soundtracks (reduced
dynamic range playback)
DRC can be accessed by the Dynamic button on the remote, the current
setting 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.
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.
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.
The following digrams show the 7 possible encoding 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
Configuration 2 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lhs, Rhs
Configuration 3 - 7.1 channel: L, C, R, LFE, Ls, Rs, Cs, Oh
Configuration 4 - 7.1 channel: L, C, R, LFE, Ls, Rs, Lh, Rh
Operating instructions continued
Advanced Dolby/DTS Setup
Dolby Pro Logic IIx
Panorama : Off
Centre Width : 0
Dimension : 3
DTS HD Spkr Remap : 1
Return : [OSD]
Center
Right (30°)
Left (30°)
Left Height Side (90°)
Left Surround (110°)
Right Surround (110°)
Right Height Side (90°)
LFE
Center
Center Surround
Right (30°)
Left (30°)
Left Surround (110°)
Right Surround (110°)
LFE
Center Over-Head
Right (30°)
Right Height
Left (30°)
Left Height
Left Surround (110°)
Right Surround (110°)
LFE
Center
Center
Right (30°)
Left (30°)
Left Surround Side (90°)
Left Surround Rear (150°)
Right Surround Rear (150°)
Right Surround Side (90°)
LFE