EUROSPEECH 2001 Scandinavia
In this paper the question is addressed whether the word-level intelligibility of time-compressed speech can be improved over linear compression by using a type of non-linear compression. Two options are tested: one type of compression which takes into account the natural timing of fast speech; and one other type of compression that saves the segmental intelligibility of short unstressed syllables. This is tested at two rates of speech: fast and very fast. The results of the perception experiments (an articulation test and a speech-interference test) show that, at both rates of speech, neither of the two types of non-linear time-compression improves intelligibility over linear compression. This suggests that both the prosodic pattern and the segmental intelligibility of both syllables contribute to word recognition in fast speech.
Bibliographic reference. Janse, Esther (2001): "Comparing word-level intelligibility after linear vs. non-linear time-compression", In EUROSPEECH-2001, 1407-1410.