All subjects participated in approximately eight to ten hours of testing over the course of four visits. At the first visit, subjects received a hearing test, unaided speech understanding in noise measures, and aided speech understanding in noise with their current hearing aids. Additionally, earmold impressions were obtained for the experimental hearing aids. At the second visit, subjects completed the first set of subjective measures for the unaided and current (own) hearing aid conditions. Subjects were then fit with digitally programmable user-selectable directional/omnidirectional hearing aids in the first of two experimental settings (randomly selected between directional/omnidirectional and omnidirectional only), which they used for approximately one month before returning for the next test session. At the third visit, subjects again completed the entire test battery for the experimental hearing aid worn during the last month. The experimental hearing aid was then programmed for the other condition (directional/omnidirectional or omnidirectional only). At the fourth and final visit, subjects completed the entire test battery for this final hearing aid condition. Additionally, at the final visit, subjects completed a preference questionnaire.