The acoustic cues to auditory space are referenced to the head which moves through the world, itself composed of moving sources so that our sensation convolves source with self- motion. With the head still, velocity discrimination, a perceptual process, is related to static acuity via the minimum audible movement angle (MAMA). Yet, while we can accurately localize static sounds, we are much less sensitive to velocity, resorting to distance and time cues where available. Interestingly, when velocity changes as a step function, discrimination thresholds and the amount of post-transition stimulus required for detection is greater than the corresponding MAMA. This suggests that when the head is stationary, the window of temporal integration may vary according to the sound's velocity characteristics. We also have evidence that auditory representational momentum scales with velocity, not duration or distance. Facing and following a moving auditory source is an ecologically important behavior. Tracking exhibits on-line velocity correction for slow to moderate velocities (< 80 °/s) but at higher velocities reflects a more predictive mechanism. Patients with schizophrenia are impaired in their ability to track a moving auditory target, when compared with controls, despite having normal velocity perception when the head is not moving. The presence of other efference copy dysfunctions in schizophrenia suggests a key role for motor efference copy in the disambiguation of self and target motion.