In nature when people perceive a point source of audio moving in 3D space say when I am stationary and listening to someone talking who is walking around me does my perception of that audio benefit from resolving out the phase differences in the audio as it is processed and combined knowing I have two ears ? In other words, is human acoustic processing fast enough to be sensitive to phase difference due to separation in 3D space of our ear drums ? Or is localization abilities simply due to amplitude differences due to distance ?
I know some predatory birds earn a living by localizing in 3D space their prey. They process incoming audio data in a certain location on one side of the brain and the neurons from each ear that transport the audio signal to that brain location are of the same length ( so both neural pathways incur the same temporal delay ) however interestingly this brain location is on one side of the brain and the neuron coming from the ear on the same side of the brain winds back and forth burning up its length in a coil before reaching this audio processing center. Its doing this to maintain phase accurate audio information being received from each ear.
UPDATE I will update this to show some back of the napkin maths to zero in on wave length in hearing freq range to reveal the time periods we are dealing with