In this paper an alternative numerical/analytical method for determining the directivity-dependent receiving sensitivity of general electro-acoustic transducer is presented. Unfortunately, the computational effort of calculating the directivity-dependent receiving sensitivity is more expensive by orders of magnitude than determining the transmitting sensitivity. Using the underlying integral representation of the problem and the existence of resolvent kernels, a postprocessing approach is derived which enables simulations of the receiving sensitivity with the effort of calculating the transmitting sensitivities.