I am Gunnery Sergeant Hartman, your senior drill instructor.
5 seconds sound clip from the Jaws (1975) movie soundboard.
You can hear this line at 00:01:33 in the Blu-ray version of the movie.
Quote context
[...]
- I am Gunnery Sergeant Hartman, your senior drill instructor.
- Do you maggots understand that?
- Bullshit. I can't hear you. Sound off like you got a pair.
[...]