To assemble hinged MEMS structures, a probe station with visual feedback has been used. With a feedback in the visual domain only, the assembly operation is really long and tedious. This paper presents the improvements using a force sensor with sound feedback coupled with vision. The developed interface allows the user to "hear the forces". Thereby. the time and the sensitivity of the assembly operation are improved. Using the auditory interface, the assembly time is reduced by about 5O..