A computational model of prosody perception
Neil P. McAngus Todd, Guy J. Brown · 1994
This paper describes a computational model of auditory rhythm perception, and demonstrates its application to the extraction of prosodic information from spoken language. The model consists of three stages. In the first stage, the speech waveform is processed by a simulation of the auditory periphery. Secondly, the output of the auditory periphery is processed by a multiscale filtering mechanism, analogous to a short-term auditory memory. Finally, peaks in the response of the multiscale mechanism are accumulated in a long-term auditory store, and plotted to give a representation referred to as a rhythmogram. It is demonstrated that there is a close relationship between the rhythmogram of an utterance and its corresponding stress hierarchy derived by phonological analysis. I. INTRODUCTION Recently, the use of prosody has attracted attention as a means of improving the performance of systems for automatic understanding of spoken language. Prosodic information can assist in the segmenta...