Dolby Volume; Dolby Atmos; Tuner Operation - Arcam AVR850 Handbook

Dolby volume

Dolby Volume is a sophisticated to maintain the same perceived overall listening level
new technology that resolves the between sources and frequency response regardless of
problem of different volume levels the volume setting. Most of the controlling parameters
between programme content (e.g. a TV show and advert of Dolby Volume are automatic as they are dependent
breaks) and between sources (e.g. a rock radio station on analysis of the audio signal and the volume setting
and DVD, or between two TV stations). It lets the of the AVR850/AVR550/SR250. However, the Volume
listener enjoy everything at the same preferred listening Leveller and Calibration Offset controls (see below) can
level without having to reach for the volume control to be adjusted to your preference.
compensate for the different recording/output levels.
Volume Leveller
This is the Volume Leveller function of Dolby Volume.
The Volume Leveller function of Dolby Volume controls
Dolby Volume also works in conjunction with the
how closely quiet and loud sources and programme
AVR850/AVR550/SR2500 volume control setting to
content are matched to each other, based on the
compensate for the ear's changing sensitivity at different
ear's perception of loudness. The range of values is 0
frequencies depending on how loud the audio is. It
(minimal levelling) to 10 (maximum levelling). The
is based on a model of how human hearing works. It
default setting is 2. If the Volume Leveller function
properly balances low, mid and high frequencies to
is turned off, no level matching between sources and
maintain all the nuances and impact of the original
programme material is performed. This is not the
audio regardless of the actual selected playback volume
same as turning Dolby Volume off as volume related
level. This is the Volume Modeller function of Dolby
frequency response processing is still active.
Volume.
When Dolby Volume is being applied to the current
Dolby Volume measures, analyses and maintains volume
input, a Dolby Volume processing mode indicator is
levels based on how people perceive sound. A variety of
shown on the OSD and the front panel display.
audio parameters are monitored including spectral- and
time-based loudness to ensure that perceived dynamics,
Calibration Offset
timbre and bass performance remain consistent at all
The Calibration Offset parameter of Dolby Volume
volume levels.
allows you to compensate for speaker efficiencies and
Dolby Volume also lets the listener control a
listening position – effectively moving the reference
programme's dynamic range – the range between loud
listening level up or down the volume scale. The default
and quiet sounds. For example, with the volume turned
value is 0 and this should normally produce a good
down for late-night viewing, dynamic range can be
result when the AVR850/AVR550/SR250 speaker levels
adjusted so that speech remains clear and loud effects or
are set using a sound pressure level meter at the listening
music passages retain their impact without waking up
position (75dB SPL, 'C' weighting, slow response).
the family.
Settings
Dolby Volume can be applied to any analogue or digital
stereo source or any digital multi-channel source. It
is not available in Stereo Direct or on the analogue
multi-channel input. Dolby Volume can even be applied
to processing of stereo signals (e.g. Dolby Surround) or
when down-mixing a digital multi-channel source (e.g.
Dolby Digital 5.1 down to stereo).
Dolby Volume can be enabled and configured separately
for each audio input in the Input Config menu. The
default is 'Off ' for 'audiophile' listening. You may wish
to turn Dolby Volume 'On' for TV and movie sources

Dolby atmos

Dolby Atmos®
for the home
represents every
sound in the original cinema mix as an audio object.
Extensions to the Dolby Audio™ CODECs, along with
an advanced scalable algorithm, allow Dolby Atmos to
be delivered via Blu-ray Disc and streaming media. Your
Dolby Atmos equipped AVR850/AVR550 adapts the
cinema experience to your home theatre using up to 12
channels (for configurations above 8 channels, aditional
power amplification is required), recreating the original
artisitc concept.
Dolby Atmos speaker setup Ceiling speakers
With Dolby Atmos technology, you have two basic Ceiling speakers are mounted directly in the ceiling as
options for overhead sound:
shown in this 7.1.4 example.
< Ceiling speakers
Dolby Atmos enabled speakers
<
The AVR850/AVR550 supports up to four ceiling
or Dolby Atmos enabled speakers. If just two are
used then they should be positioned centrally
between the screen and listening position, if fours
are used then they sould be positioned just in
front of the screen and just in front of the listening
position. For a 5.1.2 configuration, channels 6&7
of the AVR850/550 can be configured for the
height 1 channels.
Dolby Atmos enabled speakers
Dolby Atmos enabled speakers are specially
engineered to direct sound upward, where it
reflects off the ceiling to produce an incredibly
lifelike re-creation of overhead sound. Dolby
Atmos enabled speakers come in two versions:
< Integrated units that also include traditional
forward firing speakers.
< Add-on modules, containing only the upward-
firing elements, that you put on top of your
current speakers or on a nearby surface.
E-34
The AVR850/AVR550/SR250 is fitted with a FM & DAB
(digital radio) tuners. DAB broadcasts are not available
in all locations.
This section deals with tuner operation, for information
tuner
on setting up the tuner and installing aerials, see page
E-13.
operation
When a tuner input is selected, the OSD shows a list
of radio presets plus an information panel giving all
available information about the current frequency (for
FM) or station (for DAB).
The front panel will also give the same information,
pressing the key will cycle through the various
INFO
items of information:
FM
• Processing mode (default)
• Radiotext (if available)
• Programme type (if available)
• Signal strength
DAB
• Processing mode (default)
• Radiotext (if available)
• Programme type
• Signal quality
• Bit-rate of transmission
Tuning/Channel Selection
Internet radio
Please see the Network/USB Operation section on page
When switching to the internal source, the
TUNER
E-36 for details of internet radio operation.
AVR850/AVR550/SR250 enters the last used tuner band,
be it FM or DAB. Repeatedly pressing cycles
RADIO
Saving and selecting Presets
through the available tuner bands on your AVR850/
AVR550/SR250. Preset selection uses the ' and , keys on the remote
to browse and O to select the preset when the remote is
FM analogue radio
in device mode.
TUN
Frequency tuning on FM radio is done using the < and
Up to 50 presets can be stored and these can be from
> buttons on the remote control in
device mode.
TUN any band, for example Preset 1 could be an FM station,
Individual presses move the frequency down and up one
preset two a DAB station, etc. Pressing the
step. If you press and hold either of the tuning buttons
the next available preset number to be displayed, then
for two seconds, the tuner scans to the next strong
pressing the OK key again stores the current frequency/
signal. You can stop a scan at any time by pressing one of
channel in that preset. If a different preset number is
the tuning buttons again.
required, press the ' and , keys until the desired
In Europe, the internal FM radio is capable of receiving number is displayed before pressing the
second time.
RDS (Radio Data System) radiotext signals that are
transmitted on some stations. The RDS information
typically includes the radio station name, the music or
Deleting Presets
speech genre as well as additional information related to
When in tuner browse mode (using ' and , to
the current programme. On music stations this is often
scroll through the presets), the yellow button on the
information on the currently playing track.
remote is used to delete the currently highlighted (but
not playing) station or frequency.
DAB digital radio
Digital Audio Broadcasting (DAB) radio
is becoming more widely available. See
www.worlddab.org/country_information for
information on DAB availability.
You will need to scan for available stations before being
able to listen to them.
To scan for DAB stations, first select the DAB tuner then
press and hold O until the display indicates scanning
has started. The AVR850/AVR550/SR250 will then scan
all the DAB radio frequencies and compile a list of the
stations that are available.
When the scan is complete, you can scroll through the
station list using the < and > buttons on the CR450
remote control. To listen to the currently displayed
station press the O . If you do not press O within
two seconds, the display will revert to displaying the
currently playing station.
E-35
key causes
OK
key for a
OK