The Creation of RealAudio
sound clips 
This site makes extensive use of RealAudio
sound. There are two types of RealAudio - streamed
and downloaded
Streaming |
With streamed RealAudio, as soon as
you click on a RealAudio icon such as the
browser will begin to play the audio stream straight away
because the web server runs a real-time RealAudio Server.
This is not yet implemented on the UKSMG site and also
demands a good link to the server. |
Downloading
.ra files |
The second type of RealAudio sound
is based on down-loaded files. When you click on the icon
then a file with a .ra extension is
downloaded instead of the sound file being streamed. This
is less convenient than streaming but is nice and easy to
implement. (In IE select the play option
rather the more usual save it option). This
is what the UKSMG site currently uses. |
RealAudio clients
Real audio clients for your Netscape
or Microsoft Internet Explorer
browser can be downloaded FREE OF CHARGE from
the RealAudio web site. If
you have not done this already then do it now.
It is important to use the latest
browser versions so download v3 of Internet Explorer or v3 or Gold Navigator today - they are free!
RealAudio Encoding
If you have any recording that you would like to send us it is
very easy to create .ra files that can be sent
to us over the Internet. The procedure is as follows:
- Go to the RealAudio
web site and download FREE OF CHARGE
their RealAudio Personal Encoder. This
is now version 3.0.
- Install it on your PC.
- Record the sound on your PC using a microphone plugged
into your PC sound card using Windows' .wave sound
format. You can use Windows' sound recorder for this. Make
sure that you select the "11,000Hz,
8-bit, mono" recording
option to create the smallest file size possible. If
you don't you will end up files Mbytes long!
- Using a sound editor edit the recording
to remove noises,and to keep it short, punchy,
and content rich.
- Then, using the RealAudio encoder convert the .wav
file to a .ra using to either: 28.8kbit/s for SSB
or 14.4kbit/s for CW.
Make sure to use
v2.0 coding, NOT 3.0 or 4.0 at this time.
- .Make sure you enter the copyright data
in the fields on the lower left-hand side of the encoder
window.
- Please ensure that the file is less than 70k
bytes in size and absolutely no more than 100k bytes
oterwise it will not be usable over the Internet.
You can then mail these as an attachment to
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