I think 1.5x is about as fast as I can listen and retain the information being shared.
Anyone go any faster? Any tips for how to listen and understand faster? I'm typically listening while driving to work.
I'll be the odd man out and admit to enjoying my audio at a higher speed. I listen to podcasts, not audiobooks, but I listen to them at 2x speed normally. I use the pocketcasts app, which lets me adjust by increments of .1. When I decided to try increasing my speed, I did it at intervals of .1, and spent at least a few weeks at each increment. By doing it that way, I barely even noticed the increase. Now, most podcasts sound relatively normal at 2x speed.
I do reduce the speed for foreign language podcasts (I actually listen to those at .9x, so a little slower than normal), any podcasts with music (1x), and some very information dense podcasts, like the History of Rome (I retain the most at about 1.7x).