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751R V2azur
21
ENGLISH
The 751R V2 supports several music and home-cinema listening modes. The
output the 751R V2 can provide, depends both on the source signal present,
the speaker setup selected and the decode mode selected. Before we
describe how to operate the 751R V2, below is a brief guide to the Surround
Sound formats that the 751R V2 is compatible with for reference:
Dolby's lossless audio technology developed primarily for high capacity
Blu-ray discs/players. Dolby True HD delivers theoretically bit-for-bit sound
identical to the studio master by the use of 100% lossless encoding. Previous
formats such as Dolby Digital 5.1 or EX have used lossy encoding where
some data (that is theoretically less audible) is always lost in the encoding
process to reduce the storage capacity needed on the disc. This is a new
format that supports up to eight (usually used as 7.1) full-range channels
of 24-bit/96 kHz audio or two channels of 24/192 kHz via Blu-ray discs
and is not backwards compatible with earlier schemes. The format can
either be transmitted as a 'bitstream' to the 751R V2 for internal decoding
(recommended) or can be decoded by some Blu-ray players internally
and sent to the 751R V2 as multi-channel PCM. In both cases an HDMI
connection is required to the 751R V2 and a suitable Blu-ray player as Dolby
True HD is only ever transmitted over HDMI.
An encoding scheme based on the original Dolby Digital CODEC, but with
enhancements to improve coding efciency and improved audio quality.
Dolby Digital Plus supports 7.1 fully discrete channels compared to Dolby
Digitals 5.1 (or 6.1 in its EX variant where the 6th channel is matrix encoded).
These Dolby Digital Plus bitstreams are not backward compatible with legacy
Dolby Digital decoders but require an AV Receiver developed to decode
them (such as the 751R V2) and an HDMI connection as Dolby Digital Plus
is currently only transmitted over HDMI. It is however a requirement that
any Dolby Digital Plus enabled Blu-ray player must also be able transform
the Dolby Digital Plus into a backwards compatible Dolby Digital 5.1 output
for playback on legacy Dolby Digital systems. The 751R V2 is however fully
compatible with Dolby Digital Plus.
A new lossless audio codec from DTS, rather than being incompatible
with earlier versions, DTS-HD Master Audio is transmitted as an extension
to a normal DTS bitstream. A second embedded stream is sent which
contains the "difference" between the original studio master and the lossy
compressed DTS, plus the two extra channels. DTS-HD Master Audio
enabled devices (such as the 751R V2) are able to use this difference
information to recreate a bit for bit lossless version of the original 7.1 data.
Devices which do not support the Master Audio extension simply decode the
original 5.1 DTS stream and ignore the Master Audio extension providing
backwards compatibility.
DTS-HD High Resolution Audio
Known also as DTS-HR an extension to the original DTS audio format. DTS-
HD High Resolution Audio supports 7.1 fully discrete channels compared to
DTS's 5.1 (or 6.1 in its DTS ES Matrix or DTS ES Discrete variants). As with
DTS-HD Master Audio a second embedded stream is sent which contains the
"difference" between the original studio master and the lossy compressed
DTS, plus the two extra channels, however in this case the extra stream is
also formed by lossy compression. Effectively this is a 7.1 version of DTS
which can be decoded by devices (such as the 751R V2) which are able to
decode DTS-HD High Resolution Audio. Devices which do not support the
High Resolution extension simply decode the original 5.1 DTS stream and
ignore the High Resolution extension providing backwards compatibility.
Known also as DD (3/2) or DD 5.1, provides (up to) 5.1 output from suitable
encoded Dolby Digital material, with 5 main channels (Front Left, Front Right,
Centre, Surround Left, Surround Right) and a Low Frequency Effects Channel
for the subwoofer, all discretely encoded. Decoding Dolby Digital requires a
Dolby Digital encoded DVD disc and a digital connection from the source
equipment (Such as a DVD player) to the 751R V2.
Note: Dolby Digital and DTS formats can sometimes carry less channels
than their maximum such as Dolby Digital (2/0) which means a Dolby Digital
encoded signal which is actually only carrying a two channel stereo signal
(other channels inactive).
Known also as DTS (3/2) or DTS 5.1, DTS provides (up to) 5.1 output from
suitable encoded DTS material, with 5 main channels (Front Left, Front Right,
Centre, Surround Left, Surround Right) and a Low Frequency Effects Channel
for the subwoofer, all discretely encoded. Decoding DTS requires a suitably
encoded DTS disc and a digital connection from the source equipment to
the 751R V2.
Surround sound modes
Video processing settings
Video Processing Settings
Resolution :
Frame Rate :
Aspect Ratio :
Colourimetry :
Return I/O
1080P
60Hz
16:9
AUTO
This menu selects the settings that will be applied to any sources that have
had the Scaler set to Process in the Scaler Assign Menu, any sources set to
Bypass as unaffected.
The options are:
Scaler Assign
BD/DVD :
VIDEO 1 :
VIDEO 2 :
VIDEO 3 :
Recorder 1 :
Aux :
CD :
7.1 Direct :
Return I/O
Bypass
Bypass
Bypass
Bypass
Bypass
N/A
N/A
N/A
Resolution: Sets the output resolution, the options are 480P, 576P, 720P,
1080I and 1080P. I means interlaced and P means progressive scan.
Note: For 480P and 576P the 751R V2 automatically sets the Frame rate as
480P video formats are always 60Hz (NTSC format) and 576P video formats
are always 50Hz (PAL/SECAM formats).
For the other resolutions the next menu item allows choice of frame rate. It
usually best to set the output to the maximum resolution your TV supports.
Frame Rate: Sets the output to be xed at 60Hz (NTSC format) or 50Hz (PAL)
or AUTO which means the 751R V2 automatically dynamically matches the
output frame rate to the incoming frame rate. If your TV can handle both PAL
and NTSC signals the best option is AUTO (as this requires the least scaler
processing). If your TV only supports one or other format x the output to
that it supports.
Note: The incoming video of 24fps is always automatically bypassed by the
scaler and output in its native format (no change to resolution, frame rate
or any other settings).
Aspect Ratio: Sets the format of the output video (the ratio of width to
height) to one of two standardised types. If you have a wide TV set this to
16:9, if you have a non wide TV set this to 4:3.
Colourimtery: Sets the method used by the scaler to describe the colour of
the output video, the options are ITU.601, ITU.709 and AUTO. ITU.601 refers
to ITU-R BT.601, a form of digital component video developed for television
use. ITU.709 refers to ITU-R BT.709 a newer form of digital component video
primarily developed for HDTV and computer-display applications, that more
closely ts the colour rendering characteristics of newer CRTs and at panel
TVs. Again simply experiment to nd the best looking option for your TV.
In Auto mode the output format will match that at the input without
conversion.
21


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