Influence des caractéristiques du bruit de fond sur la compréhension d’un signal de parole
Claire Grataloup, Michel Hoen, Francois Pellegrino, Fanny Meunier.

This paper presents results from an experiment studying the cognitive ability to understand a speech signal in a babble background noise. We further tested subject’s sensitivity to characteristics of target and competitor words. Our results show that words are better reconstructed than pseudowords. Intelligibility of words is not influenced by a change (number of voices, frequency of words) in the background babble noise whereas intelligibility of pseudowords is. Pseudowords perception is easier when words that constitute the background noise are low frequency words and when the number of voices is fewer.