Watch the bit that's 80% of normal speed at 1.25 speed and it will be normal speed.<br><br>The maths for this is they are multiplying the FPS by 80% or 0.8 so the reverse of this is a division by 0.8 which is the same as a multiplication by 1.25. Apply the reverse (or inverse operation) on top and you cancel the change in FPS and get 30 FPS. The audio will now be the wrong speed though.