11.0

294 Surround sound
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Sound field
The input signal is presented as a field made of concentric circles.
Each red line corresponds to a level-gradient of 3 dB in the sound
field. The loudspeakers are arranged in such a way that the distance
between each loudspeaker and its neighbor is constant. This
arrangement makes a uniform distribution of the sound source
possible to all channels. Level relationships are created between the
channels that cannot be achieved in other modes.
Settings
Surround active
Activates the twin-channel Surround mode.
In the deactivated state the stereo position can only be determined
via the control elements in the track box or the mixer.
Pan L/R
This determines the way in which the left-hand or the right-hand
channel is placed in the Surround field. For the individual cases,
please read the section on “Stereo and mono signal processing with
twin-channel Surround”.
Width
Affects the extension range of the loudspeakers.
Center
The parameter controls the share of the center in the distribution of
the sound source to the front channels. In certain working ranges
(e.g. film sound) it is customary to reserve the center channel for
dialog and to mix music and noises without share in the center. A
signal positioned exactly in the middle is reproduced in the 5.1 format
with Center = 100% exclusively through the center channel, or with
0% exclusively as a phantom sound source through the channels L
and R. This parameter is often also described as divergence.
Automating Surround
This section of the dialog is described in the section on “Automation
of twin-channel Surround”.