Acoustic signals refer to sounds that are made or transmitted through objects or the air and can be heard by humans or animals. These signals are usually natural or produced intentionally to communicate or convey information. Full definition
These results suggest acoustic signals may play a role in parasite integration and adoption into the colony. (sciencedaily.com)
In dangerous situations, the system gives the driver a variety of warnings to brake: visual and acoustic signals as well as a tap on the brakes. (greencarcongress.com)
The Navy wanted to know if hydrates under the seafloor were interfering with acoustic signals picked up by an underwater hydrophone array used by the military to track Soviet subs. (discovermagazine.com)