| 摘要 |
FIELD: construction. ^ SUBSTANCE: method to treat surfaces that border volumes of space with the help of device consists in the fact that space-bordering surfaces are coated with liquid hardening materials under action of pressure from sonic waves released by sound radiator, for instance, in the form of loudspeaker providing for loudness of 30-80 dB and operating in the range from 2 to 30,000 Hz, and installed at the distance equal to half of sonic wave length designed for frequency (F) of tone series head, for treated surface that borders volume of space. Also device is described to treat surfaces that border volumes of space. ^ EFFECT: improvement of acoustic properties of premises. ^ 6 cl, 2 dwg |
