Podcast Speed on iPhone How do I slow the speed of podcasts on my iPhone? 

I have looked through all of my settings and have searched all possibilities on the podcast itself. Voices are too fast to be understood. There is no trouble with the playback of music.
Yes - you can slow down podcasts by pressing the 1x button to the left of the rewind by 15 seconds button:



In the above screenshot I have pressed the 1x button until it has become ½ x button.

If the voices are "too fast to be understood," then you may have actually increased the playback speed (2x or 3x), and may want it back at 1x. Either that or their voices are actually that fast and you will want to slow it down.