system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: The difference between speaking from the throat and speaking from the diaphragm.

As best I understand it: The best way to project ones voice and, ultimately, orate is to ‘speak from the diaphragm’. 

How would I know if I was? Isn’t it just about vocal cords?
gpt
Here's an easy way to tell the difference.

Try speaking to yourself in a very low volume, mumble like you're almost humming. If you pay attention, you'll notice a sensation like a vibration coming from behind your jaw.

Now, take a deep breath, open your mouth widely, and yell a sound while exhaling forcefully, like "ha" or "hey", as if you want someone far away to hear you in a large crowded area. You may notice that your skull seems to be vibrating less than before. You may also have the sensation that the voice came from deeper within you, instead of your general throat area.

The first one was you speaking from the throat. The second was speaking from the diaphragm.