  Audio zooming, a signal processing technique, enables selective focusing and
enhancement of sound signals from a specified region, attenuating others. While
traditional beamforming and neural beamforming techniques, centered on creating
a directional array, necessitate the designation of a singular target
direction, they often overlook the concept of a field of view (FOV), that
defines an angular area. In this paper, we proposed a simple yet effective FOV
feature, amalgamating all directional attributes within the user-defined field.
In conjunction, we've introduced a counter FOV feature capturing directional
aspects outside the desired field. Such advancements ensure refined sound
capture, particularly emphasizing the FOV's boundaries, and guarantee the
enhanced capture of all desired sound sources inside the user-defined field.
The results from the experiment demonstrate the efficacy of the introduced
angular FOV feature and its seamless incorporation into a low-power subband
model suited for real-time applica?tions.
