The authors investigate several approaches aimed at a more detailed understanding of co-articulation in spoken utterances. They find that the Euclidean difference between instantaneous frame-based feature values and the mean values of these features are most useful for these purposes, and that low-order polynomials are able to model the between-phone transitions accurately. Examples of typical transitions are presented, and shown to give useful insights on the measurable effects of co-articulation.
Reference:
Badenhorst, J, Davel, MH and Barnard, E. 2010. Analysing co-articulation using frame-based feature trajectories. 21st Annual Symposium of the Pattern Recognition Association of South Africa (PRASA), Stellenbosch, South Africa, 22-23 November 2010, pp 6
Badenhorst, J., Davel, M., & Barnard, E. (2010). Analysing co-articulation using frame-based feature trajectories. PRASA 2010. http://hdl.handle.net/10204/4713
Badenhorst, J, MH Davel, and E Barnard. "Analysing co-articulation using frame-based feature trajectories." (2010): http://hdl.handle.net/10204/4713
Badenhorst J, Davel M, Barnard E, Analysing co-articulation using frame-based feature trajectories; PRASA 2010; 2010. http://hdl.handle.net/10204/4713 .
