As locations in direct proximity to airports, both civilian and military, become more densely populated, noise pollution has become more of a concern for aircraft operators. Acoustic noise attenuation technologies apply directly to both government and commercial market segments, and more specifically to DoD and civil, commercial aviation applications that use gas turbine engines. Subsets of the technology also have direct application in maritime power-plants and stationary power generation equipment that use similar turbine engine configurations. Supporting NASA's mission, this project's technologies directly address requirements for improvements in noise reduction, prediction, measurement methods and control for subsonic and supersonic vehicle systems including fan, jet, turbomachinery, and airframe noise sources. This project's technologies offer system level improvements in noise, emissions, and performance.