The human voice calling your name is a strong auditory cue for most people, but a response is still inconsistent within ACL 1.2
Other alerting sounds may include sirens, buzzers, bells, clickers, a child crying, a fog horn, sneezing, coughing, clapping hands, whistles, duck calls, door slams, door bells and dogs barking. The only response may be to look toward the sound in about 20 seconds.