Abstract: HRIR~, a new software audio filter for Head-Related Impulse Response (HRIR) convolution is presented. The filter, implemented as a Pure-Data object, allows dynamic modification of a sound source's apparent location by modulating its virtual azimuth, elevation, and range in realtime, the last attribute being missing in surveyed similar applications. With hrir~ users can virtually localize monophonic sources around a listener's head in a region delimited by elevations between [--40, 90]°, and ranges between [20, 160] cm from the center of the virtual listener's head. An application based on hrir~ is presented to illustrate its benefits.