The juxtaposition of correct (P=CS∪PS) answers for each sound class for doctors of different specializations and medical students. The differences for individual sound classes were analyzed based on a Kruskal-Wallis test and post hoc tests with a Holm correction for statistically significant differences. According to the analysis, pulmonologists distinguish the sound classes in a better way when compared to the other groups - as many as three classes are significantly recognized differently by the group of pulmonologists relative to the other specializations: fine crackles (chi2(4) = 11.9, p = 0.018), stridor (chi2 = 14.4, p = 0.006) and rhonchi (chi2 (4) = 11.1, p = 0.026)