14th International Congress of Phonetic Sciences (ICPhS-14)

San Francisco, CA, USA
August 1-7, 1999


The Role of Context in Spontaneous Speech Recognition

Federico Albano Leoni, Francesco Cutugno

CIRASS - University of Naples "Federico II", Italy

This paper aims to contribute to the debate about autonomous vs interactive theories of spoken speech recognition supporting the latter.
   We will present the results of three recognition experiments based on two monologues produced by Italian talkers.
   In the first experiment shadowing technique was used in order to investigate the amount of intelligibility of the speech chain: the listener was asked to repeat with the shortest delay what he/she heard.
   In the second experiment the continuity of the monologues was interrupted by inserting a pause after each word.
   In the third experiment only lexical words in a randomised order were presented, a silence was inserted between words.
   In the last two experiments listeners were asked to rapidly repeat heard words, missed recognition were counted.
   Results show that the higher level of intelligibility derives from natural listening condition realised in exp. 1, recognition percentages decrease from the first to the last experiment.

Full Paper

Bibliographic reference.  Albano Leoni, Federico / Cutugno, Francesco (1999): "The role of context in spontaneous speech recognition", In ICPhS-14, 861-864.