Audiobook Design

This application allows a user to easily highlighting parts of the audio content

The functionality is designed in such a way that it is easy for the user to find HOW to bookmark and HOW to go to it

So, you click on the name in a bookmark list. Then will open a window where you can add a note, change or delete your highlight
(There was no time to implement this window)

Unlike similar applications, my concept is to designate bookmarks directly on the audio track.
I think that this visualization is necessary for the user to simplify navigation through their highlights