Fixed array strategies optimize the microphone filtering for a particular direction and don't change with varying incident source direction. Thus the directional response of the array is fixed to a particular azimuth and elevation. However, if the target source is non-stationary, the signal enhancement performance is reduced as the source moves away from the steering direction. Spatial beamwidth constraints may be added to the fixed array such that the directionality of the response is traded for beam width to compensate for small movements in the source. As the beam width increases, so too does the level of ambient noise pickup. The active user zone in the ALIVE space allows movement over a large azimuth range thus fixed array formulations need to be modified in real-time in order to beamform in the direction of the user.