| 摘要 |
A method and an apparatus for attenuating sound and acoustic noise, wherein there is formed a configuration of acoustic absorbers which prevent unwanted sound from passing the configuration. On the basis of measurements of the sound field which is wanted to be attenuated, and by means of developed computer programs, there is effected a calculation of necessary transfer functions for electro-acoustic transducers of point-absorber type, and thereafter the sound-attenuating configuration of such absorbers (2) is calculated. The electro-acoustic transducers (2) of point-absorber type may, for example, consists of microphones. |
