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larryglenn

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video conference bandwidth limitations

I am trying to figure out how much bandwidth I am using when connecting multiple classrooms.  I have one case of 3 classrooms all connected to 3 and 4 other sites all coming down my DS3, I note video distortion and audio lag.  other than using Cacti is  there a way for me to have a ball park figure on bandwidth needed.  I am using qos but not sure if set for best performance.
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mouseware

depends on codecs used and quality. I can say for me, when using H.323 and AAC-LC at 720p, we are typically between 1Mbps and 1.9Mbps.
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I am using a combination of codec's, VSX 8000s and HDX 8000s.  Does that mean 1.9 per connected codec? so if you are connecting 4 points together it would be 7.6 Mps?
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mouseware

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