I am one of the lectors at my church. I have a theater and speech/debate background, so I am passionate about making sure the initial reading of the Scripture was clearly heard and understood to begin with.
I'm endowed with a smoky-contralto voice, and when I read the OT or Epistle Readings I am very conscious that that is WHY God gave it to me: it's the very best use I will ever make of it in this life.
I consciously address the hearing-impaired gentleman at the back: I bounce my voice off the back wall. Not *loud*, but mindful of looking up, articulating the words and reading slowly enough. People often tell me they appreciate that.
When I had acute hearing myself, I was not so mindful. I was too fast and light, jibberty-jab. But God has also endowed me now with a hearing impairment, so I am more empathetic towards grey-hairs who have to lean forward to hear.