Troubleshooting / FAQ
What is WWR2?
World Wide Radio 2 (or short WWR2) is a software system for broadcasting
live and recorded audio
signals through the Internet. Look here
for a more detailed description.
Was there a WWR1?
World Wide Radio Version 1.10 is the last non Java version of WWR.
For private use it is shareware. If you are interested in it, feel free
to try it out. Click here
to get further information.
Why is the quality so bad?
If there are interruptions and long pauses during the transmission, your
connection to the Internet is too slow. If this is not the problem, please
read the answer to the next question.
Why are there several versions of WWR2?
There is a 50kbit, 30kbit, a 20kbit, and a 15kbit version of WWR2, because
WWR2 compresses the audio signal by reducing the quality of the signal.
If you have a normal slow modem connection to the Internet, use the 30kbit
version to get a fluent and uninterrupted signal. If your connection is even worse, use the 20kbit or 15kbit version. If your connection
is better (at least 64kbps), you can use the 50kbit version to
get a less reduced quality sound. Please remember, that not the connection
speed to your local Internet provider is important, but the whole connection
between you and us.
What system is required to listen to WWR2?
WWR2 requires a sound card and a working Internet connection with at least
28.8kps. WWR2 also requires an up-to-date web browser, such as the Microsoft
Internet Explorer version 4 or higher or the Netscape Navigator version
4 or higher. In the preferences settings of your browser the Java
VM (Virtual Machine) must be enabled in odert to listen to WWR2.
Who is speaking?
This site is a demonstration project. We are sending and broadcasting
different kinds of radio programs which are provided by several people.
If you are a radio station which wants to use WWR2 for broadcasting your
program, please contact us.
Where can I buy it?
World Wide Radio2 is not a standalone project anymore. It is now embedded into the E-Chalk system.
Go to www.echalk.de where you will find a price list and a contact person.
Are there further projects?
Yes, certainly a lot of people are using WWR2 now.
Here are just two examples, which we find most interesting:
Kunsthistorisches Institut der FU-Berlin
Why can't I hear anything?
First: Please check, if you meet the system requirements (see above). Then
please remember, that it takes up to 30 seconds until the initial buffer
is filled. If the client says, that the server is busy or it gets no connection,
please check if you are sitting behind a firewall. Some providers only
let you get access to the Internet through HTTP-Proxy access. These connections
are not enough for WWR2.
I get a connection and the cache display works. But why I am not hearing
Please check your speakers :)
Seriously: Some versions of Netscape's web browsers on Unix-like operating
systems have problems with sound. That is as far as we know especially
a problem under Linux. Please download the jar-file version of the client,
by clicking on the link which is located below the applet window and start
the client manually using:
java -jar wwrclient.jar trient.inf.fu-berlin.de
Please note, that you need
the Java2 Development Kit or at least the Java2 Runtime Environment
I need further Information - how can I contact you?
Please feel free to mail us. Our mail
address is firstname.lastname@example.org.