What Does Noise Cancelling Mean?
Active noise cancellation uses the natural laws of physics and sound to reduce noise.
These waveforms then add together and cancel out, much like a positive number and a negative number.

This process leaves you with a vacuum-like silence.
Essentially, any sound you hear is the vibration of air particles that trigger your hearing.
Does Noise-Canceling Block Out All Voices?
Still, as the technology stands right now, no headphones offer 100% silence.
Can You Listen to Music With Noise-Canceling Headphones?
The short answer is " yes," but there are some practical things to consider.
Most audiophiles will tell you that using ANC headphones will be detrimental to the purity of your audio.
Is Noise Canceling Bad for Your Ears?
The last point is whether ANC is “good” for your ears.
This sensation occurs because your ears are used to hearing a small amount of room noise.
This is why it sometimes feels like noise-canceling headphones are messing with your ear pressure.
Some people find this uncomfortable, and it’s not ideal for those with sensitive inner ears.