Bang & Olufsen BeoVision Avant - Technical Sound Guide - Manual (Page 10)

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Setup: Sound: Sound Modes: PRESETNAME: Advanced Settings: Loudness
Selecting this menu will result in moving
to the Advanced Settings menu for the
Loudness function.
Setup: Sound: Sound Modes: PRESETNAME: Advanced Settings: Spatial Controls
Selecting this menu will result in moving
to the Advanced Settings menu for the
television’s Spatial Controls.
Setup: Sound: Sound Modes: PRESETNAME: Advanced Settings: Dynamics Control
Selecting this menu will result in moving
to the Advanced Settings menu for the
television’s Dynamics Controls. Many movie soundtracks for theatrical
release (as well as many music
recordings) have a very wide dynamic
range. This means that there is a very
large difference between the quietest
and loudest moments in the movie.
Consequently, if you set your volume in
order to be able to hear the quiet
sections, the loud sections will be VERY
loud. Similarly, if you set your volume so
that the loud moments are not offensive,
the quiet sections may be inaudible. The Dynamics Control settings on the
television give you the option to reduce
this difference, essentially making quiet
sounds louder and loud sounds quieter
(a process known as ‘compression’, since
it compresses the dynamic range of the
audio signal). This allows you to enjoy
every moment of your movies and music
without disturbing other members of
your household.
Setup: Sound: Sound Modes: PRESETNAME: Advanced Settings: Loudness: Bass Max Boost
The Loudness setting of the television
increases the level of the low-frequency
content when the overall listening level
(i.e. the volume) is decreased. The
maximum amount of increase in level
applied to the bass frequency bands can
be set by the user with the Bass Max
Boost setting. This shows, in dB, the
amount of boost applied in the low
frequency bands at the lowest volume
levels.
Range: 0 dB to 12 dB.
Step size: 1 dB.
10 100 1,000 10,000
0
2
4
6
8
10
12
Frequency (Hz)
Gain (dB)
Figure 6: An example of the effect of the
Loudness on the frequency response of the
system at different volume settings. The
lowest curve is for a high volume setting.
The highest curve represents the response at
a low volume setting. In this example, the
Bass Max Boost is set to 12 dB and the
Treble Max Boost is set to 9 dB.