抄録
A steady background noise is necessary to mask interference which originates from adjacent working areas. With the help of loundspeakers a sound field is produced which is, as far as possible, diffuse and steady but with adjustable loudness and frequency range. The intention is to obtain the greatest possible attenuation of sound with increase of distance from the source, so that the masking is more effective. The acoustic design and equipment installation in office blocks with open plan areas will be described.
