I agree on the voice thing. Hearing yourself back is uncomfortable at first, but itβs probably one of the fastest feedback loops you can get for improving speech.
We can hear ourselves when we talk, but what we hear is distorted by our own internal resonance and, I think, by an image of our voice that we want to project. The discomfort comes from the surprise (and horror) that we don't sound how we think we sound. (Yup, I found "voice confrontation" [1] as I was writing this.) We become shy of our voice and lose confidence. But it works like exposure therapy: the more we listen to our own recorded voice, the more familiar it becomes. We learn to accept it. With acceptance we regain confidence. At the same time, we can't improve what we don't measure; "measuring" our voice lets us find ways to improve our speech.
