Don’t waste your time with daytime noise measurements

Last week I got an urgent call to measure noise from installations as soon as humanly possible, in a project which have had some problems with too loud ventilation. The problem had just been mitigated (hopefully) but they still needed a protocol to give the green light to the building. I basically booked the next possible flight and went to Stockholm. Usually, I hate doing these one-day trips. They can often be exhausting. This time however, it wasn’t a complete disaster. I had planned extreme margins both before and after the measurement. Still, I learned a couple of valuable lessons on why these one-day trips are a bad idea anyway.

Engineering, AcousticsRikard ÖqvistDecember 12, 2022noise, installations, ventilation, acoustics, buildings, quality Comments

Silence

The shoemaker's children go barefoot. In my case, that was exceptionally true up until today. I’m an acoustician, which means I have devoted my life to improving the world by improving sound quality. That’s why I have been so embarrassed by my own personal living environment. We had in our kitchen one of those old kitchen cupboard FTX ventilation units including a kitchen fan with the suction power of an asthmatic sucking air through a straw. But that’s not even close to the real problem: The noise. The old unit produced an earth-shattering 42 dBA and 62 (!) dBC in our kitchen. Throughout my whole career, I have never come across anything worse in any dwelling. It was up until today the literal definition of how to NOT practice what you preach.

AcousticsRikard ÖqvistSeptember 26, 2022acoustics, ventilation, sound quality, noise, health, sleep, annoyanceComment