A user with vision impairment could perceive shape, and a user with a hearing impairment could perceive the vibrations caused by sound through the haptic interface.
(A user with vision impairment; could perceive; shape) (a user with a hearing impairment; could perceive; the vibrations caused by sound through the haptic interface) (the vibrations; caused; by sound)
A user with vision impairment a user with a hearing impairment the vibrations
could perceive could perceive caused
shape
the vibrations caused by sound through the haptic interface
by sound