Acoustics and Studios

Having purchased new studio and transmission equipment it would be a shame if your broadcasts are spoilt because your presenters sound like they are in aircraft hangers, or you can hear people shouting or phones ringing in offices next door to the studios.

This is why we need special rooms or studios. The two critical factors for an audio booth or studio, of any type, are isolation and internal reverberation.

You have a few options:

· Do nothing (not recommended!)

· If the shell or structure of your studio is suitable, add special door & window sets & internal acoustic treatment.

· Build new studios, using specialist tried and tested designs and construction methods.

· Install modular studios

Isolation

Isolation refers to the extent to which sounds outside the studio reach the inside. If your studio is on a flight path, or next to a busy main road, acoustic isolation will be far more of a problem than if you are located in the countryside.

You do not want interfering sounds to be picked up by the sensitive studio microphones and broadcast to your audience! You also want to prevent sounds from one studio spilling into the adjacent ones.

For best isolation you need thick walls – the more mass the better, with solid floors and ceilings – ideally concrete. Doors and windows are weak links, and special acoustic door and window sets should be installed by professionals.

Reverberation control

Reverberation refers to the amount of ‘echo’ you can hear within the studios themselves. An extreme example of this is a bathroom, which is referred to as having a very ‘live sound’. Control of reverberation is achieved using acoustically absorbing materials fixed to the walls and in some instances the ceiling.

You do not want your presenters to sound like they are broadcasting from a bathroom – this is not a pleasant listening experience!

The modular approach

There are many advantages of the modular approach:

· Construction is very quick, with the minimum of mess and disruption.

· Floor loading is far less than using traditional block-work methods.

· The levels of isolation are more guaranteed compared to the traditional approach, which can be very variable and often disappointing.

· It is possible to de-mount the studio and relocate it -impossible with conventional construction methods.

Clyde Broadcast ‘hush 3’ modular studios

Clyde HUSH 3 modular studios and booths have a Weighted Sound Reduction Index of 40dB, and an average reverberation time of 400mS, ideal for radio applications in all but the noisiest of environments.

They are constructed from 600mm wide modules, which can be used to create a wide range of different room sizes, up to a maximum of approximately 5m x 5m.

Acoustic door and window sets are finished in American oak and carpet tiles are normally dark grey. Internal walls are finished in light grey and wall mounting acoustic panels are available in a choice of colours.

As standard each studio has a single door and window, though additional windows (and doors) can be specified.

Booths have low noise fans, and if air-conditioning is required this is normally installed locally. Low voltage track lighting and wall trunking is standard.

Floating floors can also be supplied if required.

Installation

Installation of a single room typically takes our team two days and we recommend that acoustic panels are installed AFTER the
studio equipment, to allow fine tuning.

Acoustic components

For customers wanting to treat existing studios, to
reduce reverberation, we recommend CATS panels
(Clyde Acoustic Treatment System).

Panels are available in a wide selection of colours,
and are available in two sizes, 2m x 500mm and 1m
x 500mm. This allow panels to be positioned around
radiators, alcoves and furniture.

Panels are easy to install and typically between half
and two thirds of the wall area needs to be covered.

Our sales office can help you work out how many
panels are needed based on your room layouts and
sizes.