There have been many advancements in hearing protection and communication technology, and probably the most well-known is active noise-canceling technology. As pointed out here, active noise-cancellation “cancels” or blocks out almost all noise coming into the headset. This causes an issue in many work environments where workers need situational awareness to prevent workplace accidents and keep them aware of potential hazards. The alternative to active noise-cancellation is noise suppression. What are the differences between these two technologies?