The same person, in just a few words, managed to produce two completely different voices. The first voice was deep and muffled, giving the impression of a very calculating mind, while the second voice was powerful and vigorous, seemingly straightforward and blunt.
What's crucial is that the relationship between these two voices seems almost antagonistic, with the second voice bursting forth with overwhelming anger as soon as it spoke...
This scene is akin to a split personality, where the same person possesses two entirely different personalities and consciousnesses. If an outsider were to witness this, they would likely be stunned on the spot.
Moreover, judging from how the second voice was agitated yet powerless, seemingly unable to control the autonomy of this body, it's likely just a secondary personality.
And the deep and muffled, calculating voice should be the dominant personality of General Hei.
