The invention is a software program which estimates the effect of environmental noise on hearing and acoustic communication in birds and other animals. The calculation uses information about the acoustic characteristics of the environmental noise, the acoustic characteristics of the vocalization or bioacoustic signal, and information about species specific hearing capabilities to provide a quantitative estimate of the impact on auditory perception. The program will operate in two modes. It will make ball park estimates of noise and signal transmission through a particular type of environment for its calculations of audibility. Or, it will take as input, estimates of the noise and the signal at the bird as generated from existing commercial software and use these estimates in the calculation of audibility.