Owner`s manual

48
Dolby Volume and
Late Night
DolbyVolumeandLateNightaretworelatedbutdierentmodesthat
are mutually exclusive. Dolby Volume is available to address some of the
most common problems associated with real-world theater use. Modern
lm soundtracks have a wide dynamic range, meaning the softest sounds
are quite a bit softer than the loudest sounds. With the volume turned up
loud enough to hear quiet whispers of dialogue, a thundering explosion
might be too loud to comfortably tolerate. ere are also times when
watchingaTVshowwhereahighlycompressedcommercialcomeson
and nearly blasts you from the room. ese abrupt changes in level can
have you diving for your remote control, constantly turning the volume
up and down as the source signals vary.
e Dolby Volume Leveler uses advanced algorithms to detect these
changes and make adjustments so you can set the volume at a comfortable
level and leave it. e algorithm preserves dynamic range in a way that
simple compression techniques cannot. It may be set for Low or High,
depending on how aggressive you want the algorithm to be in keeping the
level within a reasonable range.
e Dolby Volume Modeler may be enabled to provide dynamic
compensation for the way in which human hearing changes at dierent
volume levels. With the Modeler enabled, an increasing amount of low-
and high-frequency compensation is applied as the playback volume is
reduced. e result is full and natural sound at any playback level.
Dolby Volume may be enabled on a per source basis choosing the Volume
buttonfromtheSetupSourcepage.Youmayelecttouseitwithyourset
top box but not your Blu-ray player, for example. When accessed from the
Controls page, the Dolby Volume Leveler and Modeler functions may be
selected manually. When changing sources to one without Dolby Volume
enabled or, Dolby Volume will be switched o.
DolbyLateNightmode,notavailablewhenDolbyVolumeisactive,
provides a means of compressing the signal to reduce the dierence
between the loudest and softest passages. As the name implies, it can be
useful late at night when you want to watch a movie without worrying
that the loudest passages will wake the kids (or mom and dad!). Some
recordingsoertheauthortheoptionofengagingtheLateNightmode
automatically.IfthisagisdetectedinthebitstreamandAutoNightis
enabled, the feature will engage automatically.