First International Conference on Spoken Language Processing (ICSLP 90)
This study is part of a larger project in which we investigate the communicatively important aspects in spontaneous speech as compared to read texts. To start with we first concentrated on spectro-temporal and intonational aspects of focus words (i.e. words bearing the highest load of semantic information) in spontaneous speech and in the same texts, re-read after ortho- graphic transcription, against the background of some global acoustic parameters of both speech styles. Use is made of speech material produced by one professional male speaker (model for the diphone-based component of the Dutch national speech synthesis program). Although measurements on local acoustic parameters are still in progress, first results on some global background parameters reveal hardly any overall durational difference between spontaneous speech and the same text read aloud, but large differences in mean fundamental frequency and fundamental frequency range. Results of global and local acoustic parameters together will be used to establish the role of focus words, within read as well as in spontaneous speech.
Bibliographic reference. Koopmans-van Beinum, Florien J. (1990): "Spectro-temporal reduction and expansion in spontaneous speech and read text: the role of focus words", In ICSLP-1990, 21-24.