Help - My systems sound changes around 9.30pm

[LC1979]

Possible

Admittedly, if it were this, you would expect it to be a fairly common experience for anyone listening to music in the area. Ask around?

[Lawrence001]

Assumes theres another audiophile close by, we're not that common in my experience!

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[Sherwood]

I'm no scientist, but my money would be on psychoacoustic effects rather than anything to do with electricity supply. If there is a LF rumble during the day from the industrial site then your brain will have become very effective at not noticing it. But it will inevitably be interfering with the LF of your music.

When the machinery stops you can suddenly perceive those frequencies in your system better and assume that something has changed in your system. It hasn't, the background and your perception has changed.

This would be my guess although the proximity of an industrial site suggests that might be a contributory factor (somehow).

[Yorkshireman]

im approx 1mile from the works, and in a semi rural area, I believe its the steel works sutting down at 9.30pm on its afternoon shift,
The works cannot be heard where i live, there is very little traffic on the road, and were quite away from the road. So i dont believe its background sounds at all.

[struth]

They may not use same machinery on night shift. A good filter is worth a try. See if you can borrow one.

[LC1979]

The works cannot be heard where i live, there is very little traffic on the road, and were quite away from the road. So i dont believe its background sounds at all.

That's because your brain has cancelled it out

[Yorkshireman]

They may not use same machinery on night shift. A good filter is worth a try. See if you can borrow one.

There is no night shift only morning and afternoons.

[Yorkshireman]

That's because your brain has cancelled it out

No noise at all very quiet area, all our windows are very recent triple glazed units (the ones to cut down on your heating bills) and the building is a very thick double stone wall.
The room i use for my music was soundproofed to stop me annoying people in the rest of the house.
So ambient noise isn't an issue, plus it very quiet outside loudest noise is birds and cattle.

[Yorkshireman]

They may not use same machinery on night shift. A good filter is worth a try. See if you can borrow one.

I will look into that, also going to try a re-generator too.

[Jimbo]

Still think it's a drop in noise floor due to less hash going on in the mains.