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UCL Psychology and Language Sciences

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The Anechoic Chamber

anechoic-chamber

The study of speech requires the availability of a recording environment with very low ambient noise and reflected sound. An anechoic chamber is a room in which the walls,ceiling and floor are lined with a sound absorbent material to minimise reflections. The research anechoic chamber is lined with glass-fibre wedges whose shape enables free-field conditions to exist above 90Hz. In addition the chamber is constructed as a room within a room. The outer walls are 330mm thick and the inner room is formed of metallic acoustic panels mounted on a floating floor. This results in a very low noise environment in which the sound pressure due to outside levels is below the threshold of hearing. The chamber is equipped with a Bruel & Kjaer 2231 Sound Level Meter and Laryngograph. Signals are routed to an adjacent control room containing a Sony DAT recorder and a PC. A prompting system is available for presentation of the recording material on a ceiling mounted monitor.

The BBC's reporter Mike Williams, did an interview with Steve Nevard about the Anechoic Chamber. To view the interview with images, go to this link here:

http://www.bbc.co.uk/news/science-environment-21708581

Hire this room

The chamber can be rented for academic purposes from £45 per hour plus VAT and for commercial purposes from £55 per hour plus VAT.


Please contact Andrew Clark (a.a.clark@ucl.ac.uk) for more information.