C-Media Multi-Sound Spezifikationen PDF herunterladen (Seite 18)

18 Chapter 2 Installation

Using Multiple Sound Channels

You can have multiple display computers playing at the same time, thereby

providing multiple audio channels. The synchronization between computers is

generally good enough for multi-language support or special effects sound

tracks, but not for true, phase accurate, multi-channel sound reproduction.

Another option is to install a multi-channel sound card in a display computer.

Such sounds cards can handle up to eight phase accurate sound channels. See

“Multi-Channel Audio” on page 45 for more details.

LIVE VIDEO INPUT

WATCHOUT can integrate live video feeds using video input devices, such as

capture cards. This may be a camera feed, a satellite link or the image

displayed by another computer (for example, a Microsoft PowerPoint

presen-

tation). For examples on some suitable video input solutions, see “Live Video

Input” on page 224.

Feeding Multiple Display Computers

The video signal must be fed to each computer where it’s supposed to appear.

For instance, if your system uses five display computers, and you want to show

a live video image straddling two of those five display areas, both those

display computers must be fitted with the same kind of capture card, and the

video signal must be fed to the same input on both cards.

A video DA (distribution amplifier) may be required to distribute the signal to

multiple inputs. Such devices are available from companies such as Extron and

Kramer Electronics:

http://www.kramer.co.il/

http://www.extron.com/

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