One of the major factors in acceptance of aircraft operating in urban areas is noise . In this work , we build on a framework for trajectory generation in order to account for limits on acousticmetrics at one ormore observer locations . The spatial trajectories are generated using Bézier polynomials and satisfy dynamic , acoustic , and mission constraints . The trajectories also guarantee spatial or temporal separation between vehicles for multi - vehicle operations . A simulation example is provided that demonstrates the reduction in noise levels at a set of measurement locations .