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The Anechoic Chamber
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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.
A more extensive technical description of the chamber is also available.
The BBC's reporter Mike Williams, did an interview with Dr 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
This room is available for hire. The charge is £65 per hour for
commercial companies and £45 per hour for academic institutions.
Technical assistance can also be provided at £50 per hour.
Please contact Steve Nevard ( s.nevard@ucl.ac.uk ) for more information.
Page last modified on 11 mar 13 10:39 by Carolyne S Megan

