Part 7 of a 9-part course on modeling pressure acoustics in COMSOL Multiphysics® continues with learning how to perform a transient pressure acoustics analysis using FEM. We discuss how to set up your transient pressure acoustics analysis, including how to set up both the mesh and the time steps for the time-dependent solver in order to resolve the time-dependent waves. The room acoustics tutorial model, as seen in previous videos for the course, is used as our example.