If you'd like to turn off the instructor’s commentary, then please take the following steps:
- Enter a class of your choice
- Bring up the pause menu, by pressing ‘A’ on your right controller, or the ‘Menu’ button on the left controller, depending on how you have this configured
- Untick the ‘Voice Commentary’ checkbox
This will remove the instructors' encouragement for this and all future classes, until you turn this on again.