Stopping Vibration from Walmart trucks


I have for the past two weeks had problems with my living room and master bedroom having a low frequency issues in the center of each room, when certain trucks are delivering at a Walmart about 100 yards or so away.
Does anyone know how to disperse the low frequency waves in the room. As you move towards the walls, even in the direction of the Walmart the subwoofer effect goes away.

I have probably contributed to the issue by taking down an old wooden fence and replacing with a wrought iron fence, so we could enjoy a greenbelt between us and Walmart. My wife and I noticed the problem about two days after replacing the fence. It is only noticeable on some evenings with certain trucks, and is actually louder in my living room than at Walmart.

I was wanting to add bass traps are whatever is needed, as I don't want to go back to the fenced in backyard.

Thanks,



acman3

Showing 5 responses by acman3

That is a possible long term solution, but trying to figure out something for now. I have not been bothered by the low frequency issue for the four years I have lived in this house.

Actually, I am bothered by open concept more than the trucks.


Folkfreak and all, the big problem is the room resonating. It is not a problem caused by speakers, although I am sure it affects both speakers and turntable.

I was hoping I would be able to do something inside the room like Bass Traps. I will look into the issue via the internet, but like all, I was hoping for a magic bullet, I had not thought of. I guess I have to put the fence back up or live with it.



 
Thanks for ALL the ideas.

 I know the trucks are not allowed to idle for longer than 5 minutes in my city, which they seem to ignore, but the only time I notice the problem is around 9:00 pm, on various odd days. On the first night when I was doing investigating and after discussing with night manager, the noise became intermittent, so I will try talking to the main store manager.

My hope with something like Bass Traps, was that since along the walls there is no problem, I could somehow get the nodes in the center of the room to cancel each other. Also, I was thinking it would be the only way to get bass traps in my living room, sorta two bird, one stone.:)

We have been discussing moving to a different city, farther away from the city. I guess it is time to decide.
I appreciate all the ideas, and will play around with them in the next few weeks.

I was thinking today, why is the noise strongest in the middle of the rooms, with both rooms being different sizes. It dawned on me there is a fireplace insert in the center of the two rooms. It is open to the living room and backs up to the bedroom. I am going to check that out a little better too.

There is a wall of double pane windows, with shutters, facing in the direction of the Walmart, in both rooms, so I suspected that would be a problem.  They have done a great job on cutting down on the noise, and give us what light we have in these areas. The house is fairly tight and that may hurt with internal resonance.

The strangest thing is I actually looked into the possibility of having a problem when taking down the fence and the several articles said a fence would have to be 12' tall to have an effect, due to the waves going around/over the fence. I guess they were wrong in this case.

I have been landscaping, and will add more plants along the fence, but the greenbelt is a forest, except for a gully in the center. I like more plants so no big deal.I have four 20' trees in the back yard, but only two in the line of sight of these rooms.

Thanks again!