A short description of experiments that aim to determine visual cues influence on the perception of spatial sound is provided in the paper. The earlier stage of the carried out experiments showed that there exists a relationship between the perception of video presented in the screen and sound signals reproduced in a surround system. However, this relationship is dependent on the type of audio–visual signals. Thus a series of subjective tests has been performed on dozens of experts in order to discover these dependencies. The main issue in such experiments is the analysis of the influence of visual cues on the perception of the surround sound. This problem is solved with the application of genetic algorithm and rule searching mechanism to the processing of subjective test results. Some results and conclusions concerning the complexity of the investigated problem are included. [Research sponsored by the Committee for Scientific Research, Warsaw, Poland, Grant No. 8 T11D 00218.]