Additional Study Information: We (the Internet Real-Time Lab (IRT) in the Department of Computer Science at Columbia University) are looking for participants in an experiment evaluating the effects of audio impairments such as background noise, delay, and loss on the intelligibility of first responder communication (firefighters, ambulance, police). The experiment will take place in a lab on the Columbia University Morningside campus (CEPSR building). The experiment will take 30-60 minutes to complete. During the experiment, you will be asked to either: (1) listen through a series of audio recordings and write down license plate numbers from the audio recordings, or (2) navigate through a virtual game-like environment using information obtained from a remote study participant via a two-way communication device (walkie-talkie). Compensation: You will receive a $25 Amazon gift card.