Visualization of rhythm, time and metre

摘要

Developments in the theory of auditory processing of rhythmic signals have enabled the construction of a robust algorithm for recovery of rhythmic grouping structure. This algorithm appears to be effective for both speech and music signals. The theory upon which the algorithm was based was inspired by the theory of edge detection in vision. The output of the algorithm can be visualised in the form of a “rhythmogram”, examples of which are shown for a variety of speech signals. The relationship between rhythm, time perception and metre is discussed in the light of a recent “auditory-motor” theory of beat induction.