Well, I've now listened to the tape. My earlier post, while generally accurate, really doesn't apply to this tape. This narration style is typical of many educational narrations of the late 50s to the middle 60s. I remember the first narration I did for Encyclopedia Britannica Films about 1965. The director asked me to slow down and watch the precision of the pronunciation. I think that their concern was two-fold; much of their distribution of educational material at this time was on 16 millimeter with an optical track played on not very good projectors, and they had a large foreign market of persons whose first language was not English. Only a few years later in the late 60s to early 70s the big deep voiced announcers on radio and TV commercials became passe. The new style was much more natural, more man or woman next door type. Which turned out great for me; I have been able to avoid having a real job by free-lancing doing VOs from then 'til today.. Along with my corporate video work, using Vegas, of course.