Slides move too fast - lose my audio recording

Question

I have narrated along, slide-by-slide, with my presentation. However, when I play it the slides move along too quickly, and by the end of it the slides have gone past where my narration is.
How can I artificially add a second or two gap between the slides? I recorded each narration at a time, instead of all in one shot, if that helps.
Thank you very much for any help,
Robin

Answer 1

I've posted a more detailed answer to your other related question, but here's a simple solution to what I think you are asking here.
If each narration is a separate recording, associated with each of the images, then simply add it to the slide as an individual audio track and assign it to Build-in at the same time as the image. Then, all you have to do is wait for the narration to finish before changing to the next image. This can be done manually by Clicks, or automatically in the Builds "More Options" window.
If you want your finished presentation to play "automatically" you then can record a SILENT SOUNDTRACK (i.e. with the audio input device turned-off) while advancing the Builds and Transitions manually. Once completed, the slideshow should run "in sync" as a stand-alone presentation just as you recorded it.
Be aware, however, that if you try to run the slideshow as a Hyperlink from another presentation, or export it to another format, all bets are off! With the current version of Keynote, Recorded slideshows simply do not work except as stand-alone presentations in their native format.
Good luck.