Thinking about vibration and the effect is has on electronics, and cartridges, a question came up.
If vibrations from the sound of the system affects the sound of the system, negatively, as we all know it does [vibrations cause the wires in electronic equipment to move, and since they are often in some kind of magnetic field(s), these vibrations generate electric current in the wires that has nothing to do with the sound. Egro: noise]….
…then what about other vibrations?
Especially second story vibrations:
1. Here, we have wind that vibrates the house a lot
2. People walking or kids playing
3. Vibrations from the refrigerator motors
4. Vibrations from other people and elevators when in an apartment building.
And even ground floor vibrations:
1. Passing traffic, especially when the listening room location is near a busy road.
2. Some people have big freezers and furnaces down stairs, and sometimes the vibrations of these are transmitted though the foundation.
Anyway, our main listening room is upstairs, and I wonder how much higher a noise floor we have hear because of environmental vibrations.
Hard to test, because when it is really windy, and the house is shaking – it is also very noisy just from the noise of the wind.
Similarly with large trucks, that might be a mile away, but we can hear them [it is quiet up here] and once in a while feel them, especially when they use their exhaust brake [which is illegal up here, but if you gotta slow down, ya gotta slow down….]
So, there are indeed probably deleterious effects from environmental vibrations, causing a raising of the noise floor, but the noise from the things causing the environmental vibrations raises the noise floor itself, and even higher than that caused by the vibrations it causes, so it is probably not worth worrying about [i.e. if kids are running around, pounding the floor with their little feet, they are probably screaming too ;-)].
Not worth worrying about? Whew! OK, good. Neli! We can go on with our lives now. Such as they are….