What does "bark" mean?
"Mr. Langdon? I need to speak with you." The man's English was accented—a sharp, authoritative
bark. "My name is Lieutenant Jerome Collet. Direction Centrale Police Judiciaire."

What does "bark" mean?

I know when a dog barks, it makes a loud noise.

In this case, the word bark mean his accent are heard loudly. Is it right?

Question

What does "bark" mean?
"Mr. Langdon? I need to speak with you." The man's English was accented—a sharp, authoritative
bark. "My name is Lieutenant Jerome Collet. Direction Centrale Police Judiciaire."

What does "bark" mean?

I know when a dog barks, it makes a loud noise.

In this case, the word bark mean his accent are heard loudly. Is it right?

Answer

Yes :-)

Answer

Are you reading a Dan Brown book? :P

Answer

"bark" is not a reference to the accent here, it is a reference to the loudness and quickness/sharpness of his voice, similar to a dog bark.

Answer

Yes, it means his voice was loud and booming, like a dog's bark. :)