A finite‐element approach is developed to simulate acoustic transmission systems of arbitrary profile with circular cross section. Sound‐transmission characteristics are considered in which axisymmetric radial modes are taken into account. Some simple examples of acoustic filters with various profiles are calculated for which the numerical values are compared with the measured ones, as well as those of the one‐dimensional models based on an electrical transmission line analogy. The procedure is a valid and powerful means to cope with filters of any profile and may pave the way to solutions of problems of this kind.Subject Classification: [43]20.40; [43]85.32..