Listening to concerts for a long time will cause harm to hearing, and hearing is prone to disorders in the future. This is the so-called "headphone deafness" problem that is attracting attention.
However, in fact, you should pay attention to it, "What is the size and length of the loud volume and long time?" The standard expressed by the World Health Organization is "sonic pressure of 80dB, there is no problem within 40 hours per week." Apple also uses this as the standard.
But even if it's OK for 40 hours, even if it's called "80dB", it can't imagine how loud the volume is, right? Ordinary people do not realize that the volume and sound pressure are controlled in units of "dB".
However, if you are an iPhone user, you can easily experience and understand how loud the "80 dB" is actually. Under Hearing in the Control Center, you can see in real time how many decibels of sound pressure the headphones connected to your iPhone generate.
If [Hearing] does not appear in the Control Center, please open [Hearing] in the [Control Center] of the [Settings] application and add it.
First of all, in the case of wireless headphones, the AirPods series will almost certainly work. I can confirm the operation of the first generation of AirPods and AirPods Pro on hand, so there should be no problems in the second generation. Another unproven but promising product is Apple's Beats product. On the other hand, none of the third-party wireless earbuds around me use this feature.
On the other hand, wired connections using the Lightning-3.5mm headphone jack adapter can be unstable and difficult to recognize, but basically this feature works for any headphones.
, but the accuracy of the volume display will also become quite rough. Official support also has the description of "audio measurement of headphones, the most accurate when using Apple and Beats headphones. The audio played by other headphones, predicting measurements based on the volume of the iPhone."
Many of you may know from experience that changing headphones will actually increase or decrease the volume you hear even if the volume settings on your iPhone remain the same. Except for Apple or Beats products, other headphones do not count the difference between headphones when predicting volume when using a wired connection.
In fact, when I only change the headphones while keeping the volume settings of the iPhone unchanged, I was able to confirm that "the dB display remains the same even if the volume audible changes occur in the ears".
Therefore, the easiest and reliable way to experience and master the correct "80dB" and so on is "Audical Control Center + AirPods Series". It is rare if you use the AirPods series, so take this opportunity to "What is the volume of 80dB?" How much is the volume of your music? Let's confirm it, and consider whether your ears are healthy?
