[blain_the_train]

Because noise cancelling only works on constant noise. So if you use it at sleep time, load sudden noises will seem more alarming.

[Reason077]

> “noise cancelling only works on constant noise.”

That’s not true. While it won’t completely cancel sharp, sudden, very loud sounds, it will significant reduce their intensity.

It’s easy to miss someone talking to you, or knocking on your door, for example, when wearing NC headphones.

The Sony headphone software has settings to adjust the intensity of blocking for different kinds of sounds (such as voices, or traffic sounds).