Optimizing Teleconference Audio System Designs Lincoln 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 Lincoln.

Audio Tech-Metro Tv
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4504 W St
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3930 South St
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Computer Services Inc
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4800 NW 1st St
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Dyncorp Int
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2601 NW 25th St
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Computer Magician the
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1125 N 10th St
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Dns PC Repair
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PC Solutions
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4750 Normal Blvd Ste 2
Lincoln, NE
Duey's Computer Service Inc
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4009 Randolph St Ste 100
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Computer Care Inc
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Lincoln, NE
Schrock Innovations
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7160 S 29th St Ste C2
Lincoln, 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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