11.5

Table Of Contents
234 Surround sound
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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”.
Stereo and mono signal processing with
twin-channel Surround
Mono
The following applies to stereo signals: A mono total is formed from the signal
that is positioned as a single mono sound source in the panorama.
The following applies to mono signals: The signal is positioned as a single
mono sound source in the panorama.
X-Sym.
The following applies to stereo signals: The left-hand and right-hand channels
are aligned symmetrically on the x-axis. This enables a stereo signal to be
panned very easily from front L to Surround L.
The following applies to mono signals: In addition to the original mono source
a second (mono) mirror sound of this signal is positioned.
The mirror axis is the x-axis.
Y-Sym
The following applies to stereo signals: The left-hand and right-hand channels
are directed symmetrically on the y-axis. This enables a stereo signal to be
panned very easily from front L to R.
The following applies to mono signals: In addition to the original mono source
a second (mono) mirror sound source of this signal is positioned.