Physiological models for the analysis and synthesis of speech
In this paper the authors discuss the representation of a speech signal in terms of the properties of the vocal apparatus that generated it. This representation is interesting because it is in terms of parameters that are actually controlled in human speech production. >
Abstract As on-line discussion becomes an increasingly important and significant aspect of teachers' professional education, most particularly as part of distance learning environments, there is a need to understand and develop effective analytic techniques that provide insights into the processes at work within these systems. The computer conferencing environment at the centre of this study is a complex, unstructured discussion forum, of a type increasingly found as a component of continuing professional development courses. In these situations the evidence of knowledge building processes is a key concern. This study concentrates on a close examination of some existing analytic tools and considers their contribution to identifying the processes at work within these on-line environments, as teachers discuss aspects of education.