Playing the Mojave scenario and when I pass under two poles connected by a wire I hear voices but they are very  muffled and I can't make out what they are saying.  Checked the manual and didn't see anything about in game speech nor a short cut key to increase speech.  Am I hearing voices (in which case I will make a doctors appointment) or is there in game speech and if so, how can I increase it over the sound of the engine so I can hear what it is saying?
Chris
				
			Chris