I kindly ask for constructive contributions on the topic. Thank you!
yes.
As written, amateurish with the phone.
First of all, a phone app may be a benchmark. Nevertheless, it is just a toy by itself. You can use such an app in your own house as a comparative indicator of different devices – nothing more and nothing less. Outdoor, then, dozens of background noises come into play. Everyone knows video recordings made in the wind. Even a slight breeze on the microphone already causes you not to understand your own word anymore. Of course, an app with a phone microphone also picks that up.
Noise is not the same as noise. Some we perceive as more annoying than others.
On our terrace, of course, less comes through, around 35-40 dB(A). But this sonorous noise is really annoying :(
And I think that the rustling of leaves evokes a different perception than the noise of a ventilation system.
You say it yourself. You can program your mower individually. A heat pump or a controlled residential ventilation system is set specifically for the house, not for the neighbor’s peace. One user here is bothered by the 45 dB in the neighbor’s garden. In another forum, it is the pump for the pool. If I gave in to my surrounding noises, I would strangle the neighbor’s kids and tamper with the tracks a kilometer away. Then I would still have the highway, which is less noisy than the wind in my hair, which has turned gray from the grief of the noise. The problem is the external control of the noises coming from someone who is tangible. Ultimately, the better way is to control yourself what you should or should not pay attention to. My workplace is next to a noisy highway. Windows don’t stay open long. When I’m outside, that heat pump device on the facade annoys me – what a dilemma: the highway is much louder than that thing ;)