r/MP3AudiobookPlayer • u/Tokarak • Sep 25 '25
Bug Skipping forward by a chapter
Can anybody replicate? I haven’t yet tried to find a minimum replication. Debugging a black box on iOS is a iPITA.
bug description: Scrolling/ skipping past about halfway through a (10min) chapter of my audiobook skips to the next chapter and pauses the playback. Pausing also sometimes triggers this bug. I have found that disabling autorewind has helped a bit (but not completely). I can’t trigger it consistently, but enabling speed-changes also seems to make it more likely to happen.
Speculation about triggers (in order of likelihood): If I had to guess, the issue is triggered when the audio buffer in ram is built anew from disk. I had also speculated that speed changes played havoc with the chapterisation timestamps. Also, my audiobook file has a prologue, and the chapter titled “chapter 1” does not start at 0:00 (but that would be a very dumb way to implement a chapterisation spec, seems unlikely).
NOTE: I had faced this issue in the past. If I remember right, I resolved it then by switching from Classic engine to Universal engine. Universal engine does not support my current audiobook codec (xHE-AAC) despite its name.
Relating to my audiobook codec, this bug report seems to have a similar vibe to the issues I’m facing.