The phrase "sharp bark" refers to a loud and sudden sound made by a dog or other animal. It can be described as a quick, high-pitched sound similar to the noise a dog makes when it barks sharply. Full definition
This makes them good watchdogs a they will let you know when something is out of the ordinary with sharp barking. (second-opinion-doc.com)
The flair of revs and sharp bark when you start the engine up is sure to get your neighbour's attention though. (automobilemag.com)
It revealed a significantly different soundtrack compared to other V8 - powered JLR products, with a deeper, sharper bark from its titanium quad exhaust tips and a pronounced supercharger whine that borders on aural violence. (autoweek.com)