It does... I always tend to feel that I'll be more relaxed and refreshed in my next conversation, if I have a length of quiet time, but it's never the case. My rhythm with breath support and enunciation is just flat out gone, then. Getting into that rhythm and consciously keeping it up is very important. Understanding how to enunciate and make myself understood in various physical environments, with various forms of acoustics and auditory interference is central, when it comes to fixing errors in my speech.