http://www.ustream.tv/helpcenter/broadcastvideo#id1
Optimizing Stream Quality
* Make sure you have optimal internet connection. T1, DSL, Cable. You can check your upload speed here: www.speakeasy.net/speedtest/. We recommend an upload of atleast 300kbps.
* If you are using wireless, have a poor internet connection, or you are experiencing choppiness with your stream then you can lower your video and audio levels. You can do this in the Ustream Broadcaster console. This should help with any streaming choppiness.
* Beyond, internet connection and video and audio levels, the key to a good quality stream is pretty simple, the same fundamentals of any video experience. 1. Make sure you have GOOD lighting. This is one of the most important factors in stream quality. 2. Make sure you have a GOOD camera. The better quality the camera, the better the stream. 3. Make sure you close all other programs on your computer. Computers bogged down running other programs can cause your stream to be lower quality.
http://navi.kazusa.or.jp/ustream/weblog/
Ustreamでは31万画素程度の画像
まあそんなものに見えるが。
良いカメラが無いのでよく分からん。
昔、980円で買った6005 CIFは10万画素のようだ。
http://members.jcom.home.ne.jp/takexx/cntnt/webcam1.html
いくらなんでも微妙か。
