Twoyears ago I had central heating installed on the first floor of a duplex house. The Trane gas heater is located on the basement crawlspace. The tin pipes are installed outside of the house along the exterior walls next to my bedroom. On cold days when the heater comes on, the pipes makes loud noises, like rain drops hitting a tin roof. The area where the pipes are located is always wet because water drops underneath the pipes. The guys who installed my heater said that because the heat from the heater had to travel great distance from the basement crawlspace to the roof of the house to expel air, it causes condensation, therefore, there are water dropings. He also explained that the pipes are new so when the heater goes on, it causes the pipes to expand, thus making the knocking noise. I've been waiting for two years for the pipes to fully expand so that the noise can stop, but no avail. It's hard to sleep with this knocking noise, and don't know if it will ever stop. Can anyone tell me how to make the sound stop, aside from moving the pipes away from my bedroom? Any advise will help. Thanks. Sleepless in San Francisco.
i have had b-vent chimneys make a ticking noise but never heard warm air do it. if the warm air is causing expansion noises, the fan on/off control might be set to come on at a lower temperature. this might make the temperature change more gradual when the system kicks on.
why it sweats is a mystery. is there a humidifier on this system?
The pipes are sweating from condensation from the humidity in the air. The run is long and the warm air loses its heat thru the pipe, dropping the air temp below the dew point. Chinese water torture, you didn't pay him enough, lol.
Seriously, the fix is to upgrade the piping to 26 or 24 ga pipe (He prolly used 30 ga), That will get rid of at least most of the expansion noises. And the fix for the condensation is to insulate the pipes so the heat loss is diminished and doesn't allow so great a heat loass as to drop the air temp below the dew point.
Seal all pipe connections with mastic before insulating.
Every time I go camping and it starts to rain, I can't sleep anymore because the raindrops that fall on the tent causes a really loud and annoying sound. Is there any technique or tool to avoid or at least decrease that sound?
To me it's one of those sounds that can be soothing initially, but start to grate on you after hearing it for hours. You could try ear plugs. I don't wear them because I like being able to hear my surroundings, but I often see people camping with mp3 players, so not everyone appears to feel the need to be aware of their surroundings!
I usually throw a tarp above my tent. (an additional tarp, not the one that comes with most modern tents). I find that it usually muffles the sound of the rain. You will definitely still hear but not as intense. They are relatively cheap too ($15+ CDN).
Sometimes just choosing the location of your tent can make a huge difference in the amount of rain it receives. For example, you can protect it by placing it under thick foliage, or near a cliff if the wind is in the right direction.
Hello everyone.
I'm new to this and the question is probably stupid, I didn't find anything like this by doing a forum search.
Tell me, please, how to record the sounds of rain without extraneous noise and not to wet the equipment?
I have heard recordings of rain sounds on the Internet that are clean and without extraneous noise, they sound fantastic.
But when I try to record, I hear the sound of drops falling on the protective cover for the recorder or as drops hit the umbrella. If I record under the roof, I can hear the sound of drops on the roof or on the walls, microphones pick up all this very well.
Thank you in advance for your help.
There's a few possible approaches: Record from under an shelter that is far above your microphone (this limits your mic placement, but if all you need is ambience, it can get you close enough. Sometimes you can get away with a 4x4 flop on a C-Stand above your kit. This is basically just moving the "extraneous" noise to a place where its far enough away from the mic that it blends in with the background. As you've noticed, not all roofs / buildings work equally well here; ideally you want a building that has proper drainspouts so you don't get loud dripping into puddles. But the basic principle is to get as close to the source and as far away from the noise as possible.
Or, you can try dampening the extraneous raindrops with some sort of soft material: Think of putting a pillow above your windjammer to absorb the drops that would directly hit it. Other common materials include cotton or polyester batting, or some kind of fabric. This works until the material gets saturated, and then you may start to hear it splatter. If you want to buy a custom solution, the Rainman is a polyester rain cover that fits most zeppelins: -boom-mic-rain-cover-1 .
If the rain is slight enough, you can edit out the drops that sound too obvious in post, but this is highly dependent on the weather staying consistent, so it's not really something you can count on.
Or, if you are feeling brave and have a mic that stands up well to humidity, just use your zeppelin with the windjammer as normal. The air bubble that protects from wind is also effective at keeping water out of direct contact with the mic (the zeppelin may saturate, but the water will be wicked around the body of the zeppelin and drip off the bottom. I've recorded for a full 12 hour day in driving rain without any special rain protection, and while the mic will tend to get coated in condensation, especially switching between indoors and outdoors, the zeppelin + windjammer alone is enough to prevent direct contact with rain. The Sennheiser MKH series has stood up well for me in these circumstances. The condensation is a risk, but I think that comes with the territory of filming around water. I don't know a foolproof way of preventing it. There's certain circumstances where drops hitting the zeppelin become a problem; this is mostly either large droplets in very light rain (when the ambience isn't loud enough to mask the nearfield drops), or extremely heavy rain, when the physical force of the droplets becomes an issue (worst case, rain hitting the boom becomes a problem). The aforementioned Rainman can help mitigate this.
Most rain recordings are the sound of rain hitting something--rain passing through the air makes almost no sound. So what do you want it to be hitting? A roof? A window? Leaves? Concrete? Water? How much detail do you want--ie how close to the surface the rain is hitting do you want to be? Are you after a general ambiance or individual droplets? Finding a place with quiet BG is a good idea unless traffic and other human sounds are part of what you want. When doing nature recordings of rain I eventually found myself looking for sounds that were unique in some way OR were utterly generic. Both are useful in post, with, somewhat surprisingly, the generic rain sounds getting used more often than the unique ones.
In general, it is the atmosphere that interests me. For example, standing in the middle of the forest during the rain.
I was recording audio on YouTube for sleeping, people like the sounds of rain, and they asked me to improve the quality, I bought better microphones.
It turned out that microphones catch even a light touch to their body, not to mention the sounds of an umbrella or covers that protect from rain.
Well then find a dense enough pine tree in a forest, they are usually very dry at the base. And just place your microphones so that you catch that general ambience. You could try pointing the mics up towards the treetops
A cheap foam mattress will protect you and the mikes from the rain and absorb the shock of the drops falling on it, even in heavy rain, at least for a while until it is saturated. When saturated you can find protection and squeeze the water out of the mattress easily.
The hardware store has air conditioning filter material that works almost as well as real hog's hair, and with a few layers of that around the mic you'll stop hearing drips. I have also left mic in pouring rain in a zeppelin + windjammer and the mic and connector were dry as a bone. I guess Amazon has it also, about 1/10 the price of hog's hair.
That's pretty cool - recording sounds for sleeping! I've often thought about a recording project that would be for changing your awake world - 16+ hour recordings from different interior environments that people live. For example, a Brooklyn apartment near the window, or an ocean house, or a house in the desert. If those existed I'd play them at home and see what it felt like.
I'll chime in with a really simple solution since it's even simpler and cheaper than what's already mentioned. I often record rain (or ambiences when it might rain) with just a couple of DPA 4060 lavs - and with these I just thread the mic through a 'washing up sponge' - that is a sponge with a thin layer of scouring pad on one side - suspend so the mic is an inch or less below the sponge, and pop on a lav windscreen (DPA, rycote, bubblebee, whatever). Have the sponge side on top, the scouring side below (just above the mic capsule hanging below). One sponge, about 4x2 inches, cut in half will serve 2 mics. Just make a small slit in the centre of each with a stanley knife to thread the lav through. So small and light I carry a pair wherever I take a pair of DPAs.
After successfully experimenting with nature sounds (a sample video is at the end of this article), I decided to create dynamic weather that could be changed simply by adjusting a simple parameter from the game engine. Once again, I began with an analysis before proceeding to recreate the sounds using synthesizers. Procedural dynamic rain is an excellent example, especially because a simple Wwise parameter can change the sound from light rain to pouring rain.
3a8082e126