Would that really work for you?
It would solve the paraphrase problem (which I often equate with the voice problem, because they appear together). If I could mute the PC, and then turn off the subtitles, I could choose the paraphrases as if they were full text options, and assign the tone myself, as I always did before.
That the lines were written to played differently would probably make for some new difficulties (the loss of the dominant tone should mitigate this, however), but I'm confident I would enjoy it more than I do the voice.
BioWare says they won't give us this option because people would choose it expecting the old silent protagonist experience, and they wouldn't get it. And of course they wouldn't, but BioWare insists on protecting us from ourselves by not letting us try.
I don't know if it's possible to recapture the older games' roleplaying with a voiced protagonist, I'm inclined to think it should be.
If they do, I'll be the first one to stand and applaud.