2. misc-audio
  3. 193944-9627

Background vibration and your system.

I have been interested in vibration and its effect on my audio system for probably forty years. I remember getting some platforms with inner tubes that had to be pumped up with a bicycle pump very early on. Well, I think they may have helps a little... but pumping them up drove me crazy. Since them I have used pucks of all kinds, and Black Diamond Racing composite platforms and cones, springs, and the best has been the Silent Running Audio Ohio Class vibration platform that I had made specifically for my Linn LP12... which was well worth the price. 

I used to be a geologist. So, I have wanted to get a seismograph for a long time. About a  year ago I purchased one. It is on the Raspberry Shake network with thousands of others. They have confirmed the correlation between times of day and remote events being transmitted into the house. Evenings and especially Sunday nights tend to be the quietest. I have seen thunder claps, cars and trucks driving by being recorded as well as not too hard footfalls on my concrete floor.  

On the map below, you can see the Pacific Northwest. Each icon is a seismograph that can be viewed.  The red dots are small earthquakes which can be seen and correlated with the recording of any of the seismograph by clicking on a red dot and then the seismograph. This page has a tremendous amount of different functions if you just explore it. 

I recommend folks that are interested, move around the map and find one close to your house. You may be surprised how much activity there is. 

 

https://stationview.raspberryshake.org/#/?lat=45.65013&lon=-122.52066&zoom=8.511

 

ghdprentice

Showing 1 response by onhwy61

onhwy61's avatar
onhwy61
5,313 posts
 

Fascinating.  At one point I lived in an old wood framed house in Indianapolis about 12 miles from the airport and a half mile from the interstate.  The passing of heavy trucks over a short overpass bridge on I-65 was something you could hear and sometimes feel inside the house.  It made me think that planes landing would also cause an impact on the house, although I never directly detected an event.

My basic defense against external vibration has evolved to sheets of cork and rubber like materials.  For the turntable I use a Black Diamond Racing platform and a ball bearing cup device (can't remember the brand name).  I don't have footfall problems, but I have no idea if what I use is better or worse than alternatives.

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