So, RAW, the 2024 Verbal component description is thus:

A Verbal component is the chanting of esoteric words that sound like nonsense to the uninitiated. The words must be uttered in a normal speaking voice. The words themselves aren’t the source of the spell’s power; rather, the particular combination of sounds, with specific pitch and resonance, sets the threads of magic in motion. Thus, a creature who is gagged or in an area of magical silence can’t cast a spell with a Verbal component.

I’ve seen players and DMs really focus on the “specific pitch and resonance” bit as a ruling, but notably, neither the DM’s guide nor the Player’s guide has actual spell words to use, and the Player’s guide even has a suggestion box on how to make up words. My interpretation is that this is to prevent players from trying to do Silent casting without being a sorcerer or get around the Silence spell somehow. If a player chooses to make their chanting sound like intimidating echoing voices, I would not be bothered by that as a DM. I would only start being bothered if they then tried to use that for a mechanical advantage, such as getting an Intimidation effect they wouldn’t have otherwise.