NAD VISO TWO Owner's Manual - page 14
AUDIO SETUP MENU
LISTENING MODE
The VISO TWO offers distinct SURROUND MODES tailored for different types
of recordings or program material. With a two-channel (Stereo) source, the
following listening modes can be selected:
dolbY® virtual Speaker (dvS)
Dolby Virtual Speaker technology creates a highly compelling 5.1-channel
listening experience from as few as two speakers, making it an ideal
entertainment solution for locations where space for multiple-speaker
setups is limited.
Dolby Virtual Speaker models the sound of a playback system into two
different listening environments, based on acoustic measurements of real
rooms:
DVS Reference is a small, well-damped room appropriate for both
movies and music-only recordings.
DVS Wide is a larger room, more like a concert hall or movie theatre.
Stereo
All output is directed to the front left/right channels. Low frequencies are
directed to the subwoofer if one is present in the Speaker settings. Select
“Stereo” when you wish to listen to a stereo (or monaural) production, such
as music CD or FM broadcast, without surround enhancement. Stereo
recordings whether in PCM/digital or analog form and whether surround-
encoded or not encoded, are reproduced as recorded. Multi-channel digital
recordings (Dolby Digital and DTS) are reproduced in “Stereo Downmix”
mode via the front left/right channels only as Lt/Rt (left/right-total) signals.
The following Listening Modes require a specially encoded signal that
must be present in digital format to be decoded by the VISO TWO. These
modes are automatically switched on when the appropriate data stream is
detected. The desired data stream must sometimes be selected in the setup
menu of the source media.
dolbY digital
Dolby Digital is the multi-channel digital signal format developed in the
Dolby laboratories. Discs bearing the double-D symbol were recorded with
up to 5.1 channels of digital signals, reproducing a much better sound
quality, with dynamic and spatial sound sensations that are much better
than in the previous Dolby Surround.
dYnamic range control (dYn range)
You can select the effective dynamic range (subjective range from soft
to loud) for playback of Dolby Digital soundtracks. For fully cinematic
effect, always select 100% - the default. Settings of 75%, 50% and 25%
progressively reduce dynamic range, making soft sounds comparatively
louder while limiting the peak loudness of loud ones.
The 100% setting is best for late-night sessions or other times when you
wish to retain maximum dialog intelligibility while minimizing overall
volume levels. To maintain full dynamic range, set “DYN Range” to “Off”.
IMPORTANTNOTICE
“DYNRange”willappearasoneoftheoptionsunderthe“ListeningMode”
menuonlyifthediscbeingplayedisofDolbyDigitalformat.Thesame
applieswhenyouselectthedigitalaudioinput(coaxialoroptical)asyour
audiosource–Dynamicrangeadjustmentwillbeavailableatthe“Listening
Mode”menuonlyifthedetectedaudioisofDolbyDigitalformat.
dtS
The Digital Theater System Digital Surround (simply called DTS) is a multi-
channel digital signal format that can process higher data rates than with
Dolby Digital. Although both Dolby Digital and DTS are 5.1 channel media
formats, discs bearing the “DTS” symbol are thought to provide better sound
quality due to the lower audio compression required. It also offers a broader
dynamic, producing magnificent sound quality.
dolbY® headphone
Dolby Headphone technology, compatible with any pair of conventional
headphones, accurately simulates the experience of hearing a 5.1-channel
speaker system properly set up in a listening room, minus the annoying
“listener fatigue” effect that plagues other headphone-based virtual
surround sound offerings. Dolby Headphone technology is ideal for private
playback of multi-channel entertainment without disturbing others nearby.
Dolby Headphone models the sound of a playback system into three different
listening environments, based on acoustic measurements of real rooms:
DOLBYHPMODE1 is a small, well-damped room appropriate for both
movies and music-only recordings. This decoding process is known as the
Dolby Headphone “Reference Room”.
DOLBYHPMODE is a more acoustically live room suited to music
listening, but also great for movies.
DOLBYHPMODE is a larger room, more like a concert hall or movie
theatre.
Select DOLBY HP OFF for normal headphone audio listening.
OPERATION
uSing the viSo two – audio Setup menu
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