APM6800
+
/APM6801
+
Installation and Operation Manual
81
Copyright © 2008-2009, Harris Corporation
Appendix A: Neural Audio Packages
Figure A-1. Neural Audio UpMix Block Diagram
All of the UpMix parameters are located in
. Neural
UpMix parameters appear in APM6801UM
+
D and APM6801UM
+
LC
+
D
modules.
APD DTS Neural
®
Surround
™
DownMix
The DTS Neural Surround DownMix enables 5.1 surround sound to be
transported through any stereo infrastructure. The downmix process is based
upon the principle that both natural stereo and 5.1 content are two-dimensional;
both contain width and depth spatial attributes.
The DTS Neural Surround DownMix can represent six channels of discreet
audio sources in a stereo downmix by transforming the sources into pure
intensity and coherence encoding. By correcting overlaps of the signal sources
in intensity, time, coherence, polarity, and phase before the six channels are
combined, the DTS Neural Surround DownMix accounts for the problems
suffered in traditional matrix encode systems—such as comb filtering, spatial
location distortion, etc.
The proprietary Neural Audio “watermark process” faithfully reproduces
surround information when it is rendered by the DTS Neural Surround UpMix
or any LtRt system. In brief, the DTS Neural Surround DownMix produces a
stereo downmix that accurately represents the original content whether
monitored in mono, stereo, matrix or DTS Neural 5.1 Surround Sound.
shows a DownMix taking a multi-channel audio source. The
downmix creates two-channel audio source using the Neural Audio approach of
embedding a watermark signal within the stereo audio signal patch. The
watermark signal contains spatial and steering positioning information. The
resulting stereo audio signal is also known as LwRw.
Up mix
processing
2.0 input
5.1 output
Summary of Contents for APM6800+
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