Jean-Luc Picard is quite intelligible even when he is soft spoken like you said. There's quite a few reasons for this. One is obvious. Patrick Stewart is a shak

Jean-Luc Picard is quite intelligible even when he is soft spoken like you said. There's quite a few reasons for this. One is obvious. Patrick Stewart is a shakespearean actor so he learned how to speak in such a way. The other thing is his accent. It's an accent that lends itself well to intelligibility. Pidgin or Mountain talk or bayou certainly do not if you want something credible or authentic, for example. Thirdly, the character Jean-Luc Picard is one who has always carried himself properly and with dignity, so a voice that is loud and properly enunciated matches him perfectly. I think that you can have both, but you can't always have both. Because it doesn't always make sense to.