Percepcja nieregularności czasowych w przebiegach schematów rytmicznych

This paper presents experimental results of perception of time irregularity in rhythmical patterns. The experiment was performed by twelve listeners of various music experiences. In thirteen tests carried by 2AFC method listeners determined the time threshold of minimal differences in rhythmical series of percussion instruments. Following series was changed by complexity of rhythms, tempo, kind of instrument, metrum and in the last test melody line were introduced for masking irregularity in rhythm. The main conclusion of these experiments is that introduction to rhythmical patterns even minimal time irregularity is perceived by men. The obtained time threshold for musicians was 18 [ms] at 120 [bmp] and 33,2 [ms] at 60 [bmp]. The others results are discussed in the paper.