Carol Studenmund is the President of LNS Captioning,  but lately she's been putting her typing skills to the test.  The Portland-based company has just installed a captioning system for public announcements at Autzen Stadium in Eugene.  The announcements appear as two lines of text at the bottom of the Duck Vision Scoreboard. They typist must be accurate, and be able to type about 250 words per minute. Studenmund says the systems are becoming more common at sports events across the country. The University of Oregon already has it at Knight Arena, Hayward Field is next.