1. Where can I learn more about Real Audio and Video?
2. What software do I use to create Real Audio and Video files?
3. How do I get around not having "bandwidth negotiation"?
4. What are some of the special features of the RealServer?
5. Is there a difference between streaming using the PNM-protocol and the
HTTP-protocol?
6. You do not have the RealServer software running on your servers. Will we be
able to stream RealMedia files?
7. Using Real Audio/Video
1. Where can I learn more about Real Audio and Video? - Top
You can find out more at Real.com's Developer Zone
2. What software do I use to create Real Audio and Video
files? - Top
Real Producer Basic is available free at http://www.realnetworks.com/developers/index.html 3. How do I get around not having "bandwidth negotiation"
? - Top
While encoding, if you set the target audience to 28 K modem, you
will be able to reach the largest audience possible. If you want your higher bandwidth connection visitors to receive better quality
recordings, you can always create a second link to a RealMedia file that is encoded with a target audience of a higher bandwidth connection
4. What are some of the special features of the RealServer?
- Top
With the Real Server, you are able to take advantage of "bandwidth
negotiation". This feature takes into account the bandwidth of the surfer's Internet connection when clicking on the hyperlink that
requests the RealMedia file. Depending on the connection, the RealServer will provide a different version of the RealMedia file that
best suits the visitor's bandwidth connection.
You also need the RealServer to broadcast live on the Internet.
5. Is there a difference between streaming using the PNM
-protocol and the HTTP-protocol? - Top
If you visit http://www.real.com/, you might come across a term
called "pseudo-streaming". According to audiohost.com: "Pseudo-streaming" is a discriminating name for HTTP-stream. It was
invented by the RealAudio promotion to suggest that you need to use the RealAudio server if you want to get "real" streaming. Here's
a free translation: "Streaming RealAudio files without using RealAudio server software". That's all there is to it! The RealAudio server
actually has some special features that cannot be achieved (in RealAudio) without it. Regarding "streaming" we cannot find a difference between the two protocols.
6. You do not have the RealServer software running on your
servers. Will we be able to stream RealMedia files? - Top
Yes, you will be able to stream RealMedia files. You will need to
create a .ram file that calls your real audio/video file. The .ram file is a text file with an absolute URL. This URL will need to be:
http://full.domain.name/directory/filename.rm 7. Using Real Audio/Video - Top
Real Audio is a real time audio transmission/player system. A digital
audio stream is transmitted from the server over the Internet to the destination and played immediately, rather than being stored to disk first and then played.
Each audio clip requires two files: a metafile with extension .ram, and the digital audio clip itself, with extension .ra.
The .ram file holds one or more lines of ASCII text, each of which references the .ra file to be played when the .ram file is accessed by the browser.
Entries in .ram files have the form:
pnm://yourdomain.com/yourdomain/name-of-clip.ra
Place your .ram and .ra files in the realaudio subdirectory under your
web directory. Remember that .ram files must be uploaded in ASCII mode while .ra files must be uploaded in BINARY mode. You may then access these files via a web browser at:
http://www.yourdomain.com/realaudio/file.ram Back to Top
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