Being a speaker does not only mean to be able to recite a text in perfect diction. It means to be able to convey what the author wanted to communicate. Just reading is not enough by far.

For analytical descriptions the speaker has to cool down his voice with impersonal pragmatism, or warm it up for a catching story. Sometimes he has to liven it up with subtle humour or guide it with sneaking sarkasm: this and so much more is necessary for a true rendition of all desired meanings…