Method for active soundproofing in closed inner chamber, involves identifying secondary modulator or transmission path of interfering signal and arranging secondary modulator

摘要

#CMT# #/CMT# The method involves identifying a secondary modulator or a transmission path of an interfering signal and arranging secondary modulator such that a propagating direction of the secondary sound signal are located identically with the propagating direction of a primary sound signal in a closed inner chamber (1). #CMT# : #/CMT# An independent claim is also included for a device for active soundproofing in a closed inner chamber. #CMT#USE : #/CMT# Method for active soundproofing in a closed inner chamber. #CMT#ADVANTAGE : #/CMT# The method involves identifying a secondary modulator or a transmission path of an interfering signal and arranging secondary modulator, and thus ensures an effective active soundproofing over a broad frequency range and under different acoustic conditions. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of an initial situation with a noise, which is coupled over a window into an inner chamber. 1 : Inner chamber 2 : Outer wall 3,4 : Wall sections 5 : Excited sound 6 : Individual source.