Obviously lots of you found this long before I did (just now), as over a thousand people have listened to it, according to YouTube, but in case a few of you are as slow as I am, and haven’t come across it yet, here is a tape recording of Carnap giving his Santa Barbara APA talk in 1959 — the very talk whose typescript Stathis Psillos published (with a very useful and knowledgeable introduction) a few years ago.  There isn’t much to it that isn’t in the typescript, though of course it’s interesting to hear the author himself reading it, but there’s also the bonus of a few discussion questions at the end (does anyone recognize who’s asking the questions?  if so please write me, or leave a comment!).