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OmniTek OTR 1001 User Guide, v3.1a
K-7
Surround Sound View
The display illustrated below provides an alternative presentation of surround sound.
Figure K-4:
Example Surround Sound display.
This comprises PPMs showing the levels of the five main surround-sound channels, orientated
according to their ultimate location in space (L, R, C etc.), together with a ‘Loudness’ meter (if
supported: see Section K.4 below). The LFE channel, which would ideally be shown
perpendicular to the centre of the display, is shown as a separate horizontal meter bar at the
bottom of the display. As in other PPM displays (see Section K.2), the PPMs can be set to mimic
a particular type of audio meter or, where the AUDIO_LOUD option is installed, they can be set
to show ‘True Peak’ values.
Overlaid on each PPM is a loudness scale, used to indicate the momentary loudness on each
channel (where supported). The blue outline joins the momentary loudness values on the L, R, C,
Ls and Rs channels. The ‘ball’ in the central area of the display represents the Center of Sound.
(Again, further information is given in Section K.4 below.)
The individual PPMs of the display are created in the same way as the PPMs of the standard
PPM View, and are both coloured and marked (and configured) in the same way as the standard
Audio PPMs (see above). As in the standard PPM display, channels that don’t contain any audio
are shown as grey and Peak Hold lines may optionally be added to the display.
The same general steps are involved in working with this display as are used with other Views.
(See Section E.1)
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