SEL-1FS1/SEL-2FS1 and SEL-1XD1/SEL-2XD1
Installation and Operation Manual
Installation, Operation, and Specifications
© 2015 Imagine Communications Corp.
Proprietary and Confidential.
Version 2.8 | Page 97
DTS Neural Surround Audio MultiMerge
The following topics are covered in this section:
•
Overview (on page
97
)
•
DTS Neural Surround Audio MultiMerge Parameters (on page 98)
•
Input Selection Mode Option Descriptions (on page 100)
Overview
The DTS Neural Surround MultiMerge enables broadcasters to transition from stereo to 5.1 surround
sound, providing viewers with a 24/7 surround sound experience. With MultiMerge in line, 5.1 original
content is passed unaffected to the viewer while original stereo content is UpMixed to a 5.1 surround
sound image. This provides the viewer with a consistent surround experience.
The transition between 5.1 and stereo occurs seamlessly without the need of operator intervention. By
offering a 24/7 5.1 signal, AC3 metadata does not transition between 2/0 and 3/2 mode. This prevents
audio clicks, pops, and dropouts. The process also avoids taking "artistic license" with content by placing
audio exactly where it would be heard in a professional LEDE (Live End Dead End) listening environment.
For example, mono or pan-pot stereo will image in front of the listener, whereas stereo containing
depth information, or LtRt encoding, will surround the listener.
You can use the MultiMerge in combination with the DTS Neural Surround DownMix device to pass 5.1
through stereo-only facilities and therefore eliminate the need for costly master control upgrades.
The diagram below shows how the MultiMerge takes a two-channel audio source (stereo, matrix
encoded stereo, LtRt or DTS Neural Surround LwRw) and render a 5.1 multi-channel mix; in combination
with taking original multi-channel content and creating a stereo DownMixed signal, depending on the
input configuration and content source used.
Figure 61:
MultiMerge Block Diagram
