My rural house with 15x13x8 ft rooms, 2x6 walls with 6 inch insulation and 16 in the ceiling captures and amplifies low freq noise. Train horns sound 20 times on a typical transit through town and it is as if there were no walls. I set up an amplifier in the bedroom fed by 700 and 1000 Hz tones 90 Db and tried to find where it leaked through on the outside of the house. Could barely hear it outside! The double pane window glass was the most obvious leak, then the window frames. Took the window frames out and thoroughly reset them with sprayfoam all around. Little difference. The train horns sound at distances from 1000 feet away to 1.2 miles with not much difference in amplitude. What happened to the power varies by the square of the distance change, the inverse square law? Sound energy from a point source, whether it is a truck engine or train train horn has a lot of energy left even at 1000+ feet away. When I had the amp set up in the room with the 2 frequencies, walking around the room I could detect nulls in the sound.
I think if I start recording my GFs moanings she could freak out. Based on your experience, whats the best configuration for that specific scenario where I´d like to keep noise from leaking to the outside/next apartment; room big enough to have no wall thickness restrictions, concrete brick walls. Thanks in advance.
![[#2024MAMA] ROSÉ (로제), Bruno Mars - APT. | Mnet 241122 방송](http://i.ytimg.com/vi/dgGqD28J6aQ/mqdefault.jpg)
![Stromae, Pomme - “Ma Meilleure Ennemie” (from Arcane Season 2) [Official Visualizer]](http://i.ytimg.com/vi/1F3OGIFnW1k/mqdefault.jpg)
💪💪
Thanks
My rural house with 15x13x8 ft rooms, 2x6 walls with 6 inch insulation and 16 in the ceiling captures and amplifies low freq noise. Train horns sound 20 times on a typical transit through town and it is as if there were no walls. I set up an amplifier in the bedroom fed by 700 and 1000 Hz tones 90 Db and tried to find where it leaked through on the outside of the house. Could barely hear it outside! The double pane window glass was the most obvious leak, then the window frames. Took the window frames out and thoroughly reset them with sprayfoam all around. Little difference. The train horns sound at distances from 1000 feet away to 1.2 miles with not much difference in amplitude. What happened to the power varies by the square of the distance change, the inverse square law? Sound energy from a point source, whether it is a truck engine or train train horn has a lot of energy left even at 1000+ feet away.
When I had the amp set up in the room with the 2 frequencies, walking around the room I could detect nulls in the sound.
Is there one instrument to measure freq and amplitude
S, Use a RTA Try DB PRO apple store
Thanks
I think if I start recording my GFs moanings she could freak out. Based on your experience, whats the best configuration for that specific scenario where I´d like to keep noise from leaking to the outside/next apartment; room big enough to have no wall thickness restrictions, concrete brick walls. Thanks in advance.
What is the frequency and amplitude of the noise transmission issues you are having. Barrier design and build is built on physics.