Webcast upload bandwidth requirements
Posted: Sun Jun 01, 2014 9:13 pm
Over the last couple of years, we have originated stake conference webcasts from 3 of our 4 bldgs with good success. We avoid the 4th bldg because the U-Verse internet connection is only 6mbps down/.94mbps up rate (measured on several occasions). Recently we did a 1.5hr test webcast from the 4th bldg using the "High 4x3 (recommended bandwidth 1.7M up, 1.3M down)" Preset found in the webcast pgm. The webcast was received (in the same bldg) at 896kbps with no dropped frames or apparent problems for 1.5hrs.
This leads me to ask: Why is it recommended to have 2X the required upload bandwidth? Isn't the buffering that occurs on the headquarters server supposed to makeup for occasional uplink connection rate slowdowns? What would happen to the picture or sound if the upload rate occasionally dropped below 1X ? I am especially interested in hearing from anyone that might understand the technical aspects involved.
This leads me to ask: Why is it recommended to have 2X the required upload bandwidth? Isn't the buffering that occurs on the headquarters server supposed to makeup for occasional uplink connection rate slowdowns? What would happen to the picture or sound if the upload rate occasionally dropped below 1X ? I am especially interested in hearing from anyone that might understand the technical aspects involved.