Tips for Technicians
Ein Techniker-Tipp
Streaming from Simple Sites
Data can “stream” from simple HTML sites. You need’t contact your web master to get data flowing. Let me tell you, how.
Daten können von simplen HTML-Servern »strömen«. Hier steht wie.
Streaming means that data is already shown before all the file has been transferred to your local PC. That’s nice for sound and video files, as well as for pdf documents. For continuous webcasts as from radio stations it’s a must.
Technically you’ll find two types of streaming. The finer one is controlled by special stream servers. They interact with your PC (the client) to agree on flow speed, and to adapt it according to bandwidth. I won’t go into that. The second type of streaming, a sort of poor man’s ersatz, is HTML streaming off standard sites. We’ll only speak about this.
Now my server here is nothing special. And my browser is a standard Netscape Communicator 4.7, like Microsoft’s Explorer freely available.
Your first have to be sure that your browser supports streaming. For sound (and video) you might have to install the Real Audio player; be sure not to have your browser active (turned on) when installing it! With pdf files you might have a problem however. If your browser displays the alternative “show or store” when you click onto a pdf (or any other streamable data) – then you’ve lost out before you even started. In this case you have Adobe’s Acrobat reader (AcroRd32.exe) running as external application, which is only called upon when the browser has satisfied the full download of the pdf file. You must have the pdf reader running as plugin within your browser! Then you see the acrobat reader within the frame of the browser, not running as separate program. A hint: When printing pdf files, use the printer button of the Acrobat controls (nearer to the text), not the one of the browser!
A direct way to make Adobe’s Acrobat a plug in (Adobe calls it “byte serving”, see
Now to the preparation of the data on your server.
To “stream” pictures, incidentally, you have to code them as “progressive jpg”. See the difference between normal top-to-bottom jpg (heavens first, people later ...) at Dallmayr’s (with music) or at
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