Why is The Flash not deaf, given the sonic booms created by his speed should have hurt his hearing?

Question

When an object travels in fast speed, it creates a sonic boom. Frequent exposure will cause deafness. Why isn't The Flash deaf as a result?

Brythan · Accepted Answer

The Flash has super-healing.  If his hearing was damaged, he'd heal from it.

He also has the Speed Force, which protects him from various side effects of his speed.

Quoting from the above link:

Speedsters can also heal more rapidly than an average human. In addition, most incarnations have an invisible aura around their respective bodies that protects them from air friction and the kinetic effects of their powers.

In other words, he has (effectively magical) protection from the side effects of his powers.  And if he didn't, he has accelerated healing to recover from such damage.

GeorgeN · Answer

Same reason why pilots of supersonic aircraft aren't deaf. He is inside the protective shockcone generated by his nose (nose-cone in the case of aircraft).
While in this cone, his ears are out of the airflow and the shockwave (which generates the boom) is radiating away from him. This is subject to his speed, so at Mach1 the shockcone may not encompass his ears, and he would get the boom. Does a sonic boom generated by your own nose hurt? You would have to stick your head into a 700mph airstream to figure that out. Since that is potentially lethal, some canon suggests "Speed Force" protects the Flash. This is the same concept as inertial damping fields used in science fiction. You can dampen the inertia, but anything moving through air above Mach1 generates a shockwave. Get hit by that wave and your ears interpret it as a sonic boom.

Garret Gang · Answer

Well,  the flash doesn't produce sonic Shockwaves.

Proof? Take a gander at the glass windows he superspeeds by that do not shatter.

Why is The Flash not deaf, given the sonic booms created by his speed should have hurt his hearing?

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