By MALUM NALU
We have recently been hearing a lot from our
politicians about the development of radio and television
stations, in an era when the Internet is now king
Our MPs should realise that computers take centre stage in
the massive Information Revolution currently sweeping the
globe.
In the near future, as wireless networking (Wifi) comes into
play in Papua New Guinea, as in other countries, radio and
television may become obsolete.
The newspaper you are reading may also follow the same trend
because you don't need to buy a newspaper when you can read
it online.
Radio has played a pivotal role in our development, however,
times are changing.
Internet radio is the latest technological innovation in
radio broadcasting since the business began in the early
1920s.
Internet radio has been around since the late 1990s.
Traditional radio broadcasters have used the Internet to
simulcast their programming.
But, Internet radio is undergoing a revolution that will
expand its reach from your desktop computer to access
broadcasts anywhere, anytime - and expand its programming
from traditional broadcasters to individuals, organisations
and government.
Radio broadcasting began in the early '20s, but it wasn't
until the introduction of the transistor radio in 1954 that
radio became available in mobile situations.
Internet radio is in much the same place.
Until the 21st century, the only way to obtain radio
broadcasts over the Internet was through your PC.
That will soon change, as wireless connectivity will feed
Internet broadcasts to car radios, PDAs and cell phones.
The next generation of wireless devices will greatly expand
the reach and convenience of Internet radio.
Traditional radio station broadcasts are limited by two
factors:
The power of the station's transmitter (typically 100
miles); and
The available broadcast spectrum (you might get a couple of
dozen radio stations locally).
Internet radio has no geographic limitations, so a
broadcaster in Wabag, Enga Province, can be heard in Japan
on the Internet.
The potential for Internet radio is as vast as cyberspace
itself (for example, Internet radio network Live365 offers
more than 30,000 Internet radio broadcasts).
In comparison to traditional radio, Internet radio is not
limited to audio.
An Internet radio broadcast can be accompanied by photos or
graphics, text and links, as well as interactivity, such as
message boards and chat rooms.
This advancement allows a listener to do more than listen.
The relationship between advertisers and consumers becomes
more interactive and intimate on Internet radio broadcasts.
This expanded media capability could also be used in other
ways.
For example, with Internet radio, you could conduct training
or education and provide links to documents and payment
options.
You could also have interactivity with the trainer or
educator and other information on the Internet radio
broadcast site.
Internet radio programming offers a wide spectrum of
broadcast genres, particularly in music.
Broadcast radio is increasingly controlled by smaller
numbers of media conglomerates.
In some ways, this has led to more mainstreaming of the
programming on broadcast radio, as stations often try to
reach the largest possible audience in order to charge the
highest possible rates to advertisers.
Internet radio, on the other hand, offers the opportunity to
expand the types of available programming.
The cost of getting "on the air" is less for an Internet
broadcaster, and Internet radio can appeal to
"micro-communities" of listeners focused on special music or
interests.
What do you need to set up an Internet radio station?
CD player;
Ripper software (copies audio tracks from a CD onto a
computer's hard drive);
Assorted recording and editing software;
Microphones;
Audio mixer;
Outboard audio gear (equaliser, compressor, etc.);
Digital audio card;
Dedicated computer with encoder software; and
Streaming media server.
Getting audio over the Internet is pretty simple:
The audio enters the Internet broadcaster's encoding
computer through a sound card.
The encoder system translates the audio from the sound card
into streaming format.
The encoder samples the incoming audio and compresses the
information so it can be sent over the Internet.
The compressed audio is sent to the server, which has a high
bandwidth connection to the Internet.
The server sends the audio data stream over the Internet to
the player software or plug-in on the listener's computer.
The plug-in translates the audio data stream from the server
and translates it into the sound heard by the listener.
There are two ways to deliver audio over the Internet:
downloads or streaming media.
In downloads, an audio file is stored on the user's
computer.
Compressed formats like MP3 are the most popular form of
audio downloads, but any type of audio file can be delivered
through a Web or FTP site.
Streaming audio is not stored, but only played.
It is a continuous broadcast that works through three
software packages: the encoder, the server and the player.
The encoder converts audio content into a streaming format,
the server makes it available over the Internet and the
player retrieves the content.
For a live broadcast, the encoder and streamer work together
in real-time.
An audio feed runs to the sound card of a computer running
the encoder software at the broadcast location and the
stream is uploaded to the streaming server.
Since that requires a large amount of computing resources,
the streaming server must be a dedicated server.
•For feedback
and comments, email malumnalu@yahoo.com or SMS
6849763/72580278.
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