Problem when playing audio books

[mu0chn]

When I am playing audio books I keep getting a very small break in the audio. I have not timed it but it is very frustrating. It is not notifications coming through because they are working fine and the audio book goes back and replays the last word.
Any one help

 

[B. Diddy]

Welcome to Android Central! Which audiobook app? Have you tried different apps? Does this only happen with Bluetooth headphones, or does it also happen with wired headphones or through the main speaker?