Dynamics
In order to play dynamics on the timpani, the height of your mallets must relate to the dynamic level you are trying to achieve. To play a softer dynamic, your mallets will be closer to the head of the drum. As your crescendo, your stick height will increase as well. Do not place excessive pressure on the heads as you crescendo.
Below are videos showing a crescendo from pianissimo to fortissimo and then a decrescendo from fortissimo back to pianissimo. Both legato and staccato strokes are shown.
Below are videos showing a crescendo from pianissimo to fortissimo and then a decrescendo from fortissimo back to pianissimo. Both legato and staccato strokes are shown.