Disclosed herein are methods of using prodrugs of GABA analogs and pharmaceutical compositions thereof to treat andor prevent urinary incontinence in humans, and pharmaceutical compositions of prodrugs of GABA analogs useful in treating andor preventing urinary incontinence. The method includes the following steps. The audio alarm system includes a control unit configured to generate a set of control signals, each of which is generated in response to detection of the presence of the associated event by a corresponding one of the sensors. If the respective pattern is already stored in the pattern database, then the associated 3D extraction parameters stored in the database are assigned to the respective pattern without the need to extract the respective pattern.