You quickly get adjusted to the idea that he talks, and we think of him really just as another person.
8 seconds sound clip from the 2001: A Space Odyssey (1968) movie soundboard.
You can hear this line at 01:02:55 in the Blu-ray version of the movie.
Quote context
[...]
- What's it like living for the better part of the year in such close proximity with Hal?
- Well, it's pretty close to what you said about him earlier.
- He's just like a sixth member of the crew.
- In talking to the computer, one gets the sense that he's capable of emotional responses.
- Do you believe that Hal has genuine emotions?
[...]