@StarShine100 Hi. If audio / sound scrubbing is turned on, try moving the playhead (vertical blue bar) across the timeline.
You should hear the sound coming out from each frame. If you do hear the sound, note that without audio scrubbing this would normally not be possible, and you’d only be able to listen to the sound during playback.
At a glance the term audio scrubbing basically comes from the “scrubbing” motion you perform over the timeline.
This is often used for lip synchronization (lip-sync) and to accurately match sound effects or music beats to the animation since regular playback can lag itself with enough frames and layers on the project
For more info please read the sound guide known issues:
Here’s a video that shows this feature in action along a tip on how to configure it
The playlist showcases other new yet mildly unknown features that were added a few years ago. Hope this helps.