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Studio equipment source mixer

Processing


Monitor

The process of transmission involves the modulation of the carrier  with the programme output of the radio station.  The carrier can be either a radio wave or carried on cables or other material - fibre is become more widespread and will become THE standard method of distribution within our lifetime.  Where fibre isn't feasible, radio waves will continue to be used.
Common Carrier routes

LW, AM, SW, FM 

Satellite  &  WWW (Internet)

This section is concerned with the programme origination, at the studio part of the transmission chain.   From there it is processed to match the method of distribution.
STUDIOS
Less than a generation ago, radio and TV studios would use very expensive equipment; a typical radio studio would cost between £20,000 and £150,000 to build. This can now be achieved for a couple of thousand pounds and the resulting studio will provide much better audio quality than previously.  It will also be much easier to operate!

Digitisation has revolutionised radio studios and programme origination. Until very recently all sound sources in radio studios were analogue, which means they sent a contant stream of varying audio information to the user. Sound sources were traditionally quite large and they used separate cables for each source, until the point of mixing. Digital has decimated the size and cost of almost every item (except human beings; we are probably next!).

Digital audio has had some really profound effects in four distinct areas of the operation of radio stations. These are seen most in controllability, miniaturisation and especially in cost.

Audio production Many sources have changed beyond all recognition, especially in size.  The adaption of digital techniques, in particular the use of compression, renders files much smaller and make it possible to record on very small (physically) media.

Controllability of equipment has become easier, with remote operation of sources being simple to achieve. 

Administration. These are vital in tracking royalty liabilities. Now all logging of music played can be done automaticaly. 

Transmission:  the process of sending the finished programme to listeners.

Playout Equipment

Playout equipment has become far more efficient, smaller and thus very much cheaper. The kit is also much more easily controlled, smaller, faster and cheaper too. Control is a key aspect of digital's improvements: instead of having to be adept at equipment operation or the technical parameters  radio presenters are free to concentrate on  programme content.

Sources

The key source of equipment for most radio stations is the item with which it all began - the microphone.  In the early days of radio this was a huge contraption mounted on a  trolley. To add music, the microphone would be wheeled over to an ensemble of live musicians, or placed next to a gramophone - electric pickups for turntables only came in ten years after broadcasting started.

Rode microphones  radio equipment


  Located
  at studio





Microphones
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Registered in England and Wales # 8503418.  
All Rights Reserved.
Reproduction strictly prohibited.


Mixing  Console


Microphones


Audio Library
Music, jingles, commercials, interviews


Internet Radio servers

Servers


   CODEC


Archive

Receing radio on laptop
Radio Listener with receiving kit

Transmission

Analogue &  Digital

via
Internet

Click on these items of
Key Equipment
below for more details


Mixing Consoles

Microphones

Library

Microphone Effects

Audio Processing

Internet Provider

Playout &  Automation

Recorders

CD and Vinyl Players

Microphones

Microphones have improved and their size and cost has plummeted. For many years, large broadcasters have insisted on using high end microphones, but these are not really required for most radio broadcasting.

A decent quality microphone will still cost between £75 and £400, but pay much more any you may be hard pushed to tell the difference in sound. 

Library

After seventy years of recoding development, digital storage has now made most anologue forms redundant. For audio quality and controllability, audio is now recorded as a series of  zeros and ones on either magnetic Hard Drives or on Solid State Drives

Processing

Its important that the audio is processed correctly in a radio station's audio chain. This is dealt with in on other pages about Audio Processing and micropone pre-amps. 

Interconnect

Even something as simple as the cabling between various items of equipment and studios is improved and changed. Previously all interconnection of audio, and often of switching circuitry too, had to be in screened audio quality cable. Dozens of cables can now be replaced by a simple network of Ethernet cables, sometimes (wrongly) referred to as “Cat 5”.

An Ethernet cable is simply four pairs of twisted cable in one encapsulation, with a small modular 'RJ' connector at each end. It can carry multiple signals, but take care to select the correct one as there are some variations and its important to have the right cable correctly terminated in the right connector.

iRig

Recorder






No need to drag a heavy recorder around with you as your Smartphone can do the job even better. All you need is the iRig app, which instantly turns your smartphone into a great quality digital recorder. You can edit on screen and shoot the finished recording back to base in seconds by email. 


iRig recorder logo
See iRig page
for details.
WBC Radio panel

Mixing Consoles

The heart of the studio, where all audio is switched and controlled. See some of the options on this page.

Servers

WoR text Logo
WoR logo