Audacity is a popular and powerful platform for audio editing. It has many useful features, a flexible plug-in subsystem, and is multiplatform too. The latter characteristic greatly facilitates the development of portable acoustic applications that will work regardless of the system employed by the final user. This conducted us to start the porting of Angelo Farina's Aurora plug-in family for Adobe Audition to Audacity, beginning with the Acoustical Parameters module. In this article we describe this development work and the results obtained.