http://venturebeat.disqus.com/News about Tech, Business and InnovationenTue, 02 Mar 2010 01:00:01 -0000http://digital.venturebeat.com/2009/10/13/vivu-raises-3m-for-interactive-video-suite/#comment-37549574<p>Here, I want to say: you are successful, I hope you will do better!</p>links of londonTue, 02 Mar 2010 01:00:01 -0000http://digital.venturebeat.com/2009/10/13/vivu-raises-3m-for-interactive-video-suite/#comment-37535612<p>Here, I want to say: you are successful, I hope you will do better!</p>Jessica RileyMon, 01 Mar 2010 21:11:25 -0000http://digital.venturebeat.com/2009/10/13/vivu-raises-3m-for-interactive-video-suite/#comment-23438784<p>Web casting, or <a href="http://www.vsworld.com/?loadSwf=swf/streaming.swf" rel="nofollow noopener" target="_blank" title="http://www.vsworld.com/?loadSwf=swf/streaming.swf">broadcasting</a> over the internet, is a media file (audio-video mostly) distributed over the internet using streaming media technology. Streaming implies media played as a continuous stream and received real time by the browser (end user). Streaming technology enables a single content source to be distributed to many simultaneous viewers. <a href="http://www.vsworld.com/?loadSwf=swf/streaming.swf" rel="nofollow noopener" target="_blank" title="http://www.vsworld.com/?loadSwf=swf/streaming.swf">Streaming video bandwidth</a> is typically calculated in gigabytes of data transferred. It is important to estimate how many viewers you can reach, for example in a <a href="http://www.vsworld.com/?loadSwf=swf/webcast.swf" rel="nofollow noopener" target="_blank" title="http://www.vsworld.com/?loadSwf=swf/webcast.swf">live webcast</a>, given your bandwidth constraints or conversely, if you are expecting a certain audience size, what bandwidth resources you need to deploy.</p><p>To estimate how many viewers you can reach during a webcast, consider some parlance:<br>One viewer: 1 click of a video player button at one location logged on<br>One viewer hour: 1 viewer connected for 1 hour<br>100 viewer hours: 100 viewers connected for 1 hour…</p><p>Typically webcasts will be offered at different bit rates or quality levels corresponding to different user’s internet connection speeds. Bit rate implies the rate at which bits (basic data units) are transferred. It denotes how much data is transmitted in a given amount of time. (bps / Kbps / Mbps…). Quality improves as more bits are used for each second of the playback. Video of 3000 Kbps will look better than one of say 1000Kbps. This is just like quality of a image is represented in resolution, for video (or audio) it is measured by the bit rate.</p>Andy LockWed, 18 Nov 2009 01:47:01 -0000