Optimizing Teleconference Audio System Designs Omaha NE

Linking multiple audio DSP boxes to act as a single virtual system for large teleconference system designs looks simple, but can present serious implementation challenges. The tip will make the most of your multi-unit system designs for video and audio teleconferencing applications in Omaha.

Digital Dot Systems
(402) 408-0115
13213 F St
Omaha, NE
 
Arn Networks Inc
(402) 896-8766
3630 S 144th St
Omaha, NE
 
Becker Computer Services Inc
(402) 455-7554
1918 S 37th St
Omaha, NE
 
PC Rx
(402) 496-7279
Omaha, NE
 
Binovia
(402) 331-0202
8631 F St
Omaha, NE
 
Scantron Service Group
(402) 697-3000
2020 S 156th Cir
Omaha, NE
 
Dataserv Corp
(402) 339-8700
8625 F St
Omaha, NE
 
Summit Innovations
(402) 697-1552
11717 Burt St
Omaha, NE
 
Nebraska Office Machine & Supply Inc
(402) 597-1520
2904 N 75th Ave
Omaha, NE
 
Harland Technology Services
(402) 697-3000
2020 S 156th Cir
Omaha, NE
 

Optimizing Teleconference Audio System Designs

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Source: PRO AV Magazine
Publication date: April 1, 2005

By Kelly Hannig, CTS-D

Have you designed a large system for video or audio teleconferencing that looked straightforward and simple on paper, but turned out to be a configuration nightmare after it was wired up? Or perhaps you've even had to re-design the entire system to make it work properly? If you answered yes to either of these questions, help is on the way.

By using these basic connection and process flow ideas, you can simplify general routing requirements in the room, make it easier to manage echo cancellation references, and get the best system echo cancellation performance when using dynamic feedback controllers in a conferencing environment. The following design tip will help you optimize multi-unit audio DSP systems for video and audio teleconferencing applications using the internal audio data bus more efficiently.

Tip #1: Simplify echo cancellation reference management by connecting all far-end audio sources and local program audio to the same physical DSP unit.

Echo cancellation, the enabling technology for teleconferencing, is simply the process of preventing unwanted audio from passing through a microphone channel to the far end. For example, we want audio from talkers in the local room to pass to the far end, but we don't want that same audio coming from the far end to return to the far end because that's the “echo” we want to cancel.

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