Automatic Rewind
I have a couple ideas for a new features. The first I think it would be nice if the Automatic Rewind had the option to adjust the playback speed up to the next threshold until the position in the episode has returned to where we left off.
I'll give an example. Let's say the Speed Adjustment at 1.2x Automatic Rewind set to 5 minutes with Incremental Rewind enabled. And an example scenario might be that the Automatic Incremental rewind moved the current position back 3 minutes. So for the next 3 minutes the player would operate at a playback speed of 1.5x then the playback speed would adjust back to 1.2x.
The second is another Player Behavior option that would slow the playback down to one threshold lower if the user hit the rewind button (a parallel option would be to disable Skip Silence) until they get back to their previous position in the episode. Probably consider the rewind additive if they hit the rewind button an additional time before the position have moved beyond the time when they first hit the rewind button. This would get the listener through the refresher in the episode more quickly since they presumably understood it well enough to begin with.
I'll give an example for this too. Let's assume the manual rewind is set for 15 seconds and they are again listening at 1.2x. If the position is at 5:15 into an episode and the user hits the rewind button that would take them back to 5:00 into the episode. Let's say they again hit the rewind button after listening for only 5 second. Their position in the episode would now be 4:50. With this option the playback speed would be adjusted down to 1.0x for the next 25 seconds from 4:50, until they got back to 5:15. As I mentioned above a parallel option would be to disable Skip Silence, if it is enabled, for the same period. It would make it so if they are manually rewinding, reasonable assuming it is because they want to hear something again, they can also hear that something more clearly.
Where I see this getting hairy is if the users does a manual rewind during the automatic rewind period. So returning to the automatic rewind example above if the position is back 3:00 and after getting through 1 minute of the 3 minute automatic rewind period the user then does a manual rewind I think you'd slow the playback down from 1.5x to 1.2x then after 15 seconds speed it back up to 1.5x and then once you get back to the 3:00 mark you'd slow back down to their previous setting for that episode of 1.2x.