Audio systems are integral to the delivery of healthcare simulation. This lecture discusses the components that are required for their use and give a hands on demonstration of multiple components. A terminology discussion and examples of microphones, mixers, signal processors, speakers, cables, wireless connections, 70V and 4-8 ohm systems, balanced and unbalanced inputs, phantom power, wattage, and methods of transmission will give attendees an increased ability to discuss with other personnel and A/V designers how to achieve the desired goals of your center. A demonstration and discussion of microphone types, pickup patterns and sensitivities is shown. An overview and discussion of DSP (Digital signal processors) and mixers is shown. Multiple cable types, connectors and methods to transmit audio is demonstrated hands-on. In addition, a goal of this workshop was to provide a hands-on experience to help learners identify common audio issues, suggest methods for fixing those issues, and discuss strategies on how to improve the realism of live and recorded simulation audio using the best hardware and software. Common issues discussed include, but aren’t limited to: background noise; the entire video, or a single participant, is too loud or too quiet; the video and audio are out of sync, equalization, choosing the best microphone, pre- and post-processing. Learning how audio is transmitted, stored and projected will improve your ability to share information with learners. Learner communication is a key aspect to healthcare simulation objectives. Capturing, reviewing and improving this communication will decrease errors and improve patient outcomes. Demonstrating how learners are performing and interacting is of vital importance to outcomes in a simulation session and of equal or greater importance than video observation in many encounters.