LANSPAN colloquia: Susanne Brouwer (RU Nijmegen)
|Wanneer:||di 28-11-2017 16:15 - 17:30|
Speech processing in challenging listening conditions
At first sight, listening to speech seems like an easy task. However, in everyday life it is dauntingly complex, as speech typically varies considerably across instantiations, speakers, and contexts. Such so-called challenging listening conditions can originate from the speaker. For example, listeners can encounter speakers who reduce a lot or who speak with a regional accent. They can also originate from the environment: speech can be degraded by traffic noise or babble from other speakers in the background. Finally, they can arise from listener limitations. Non-native listeners, for instance, often experience the detrimental effect of their imperfect second language during listening. Moreover, the adverse effect of such an incomplete language is exacerbated when combined with speaker or environmental degradation. In this talk, I will consider the influence of these challenging conditions on listening.
The first line of research is concerned with the question of how listeners process reduced speech such as "yesay" pronounced as "yesterday". Using a visual world eye-tracking paradigm, I will demonstrate how reduced speech can affect the lexical competition process. The second line of research examines how native and bidialectal listeners segregate speech from noise. Results on a speech-in-speech recognition task show how bidialectal status is of influence on performance. Both of these lines of research reveal how challenging listening conditions can adversely affect communication. The third line of research investigates whether such conditions also affect moral decision making, a serious task in life which could have far-reaching consequences. Preliminary results reveal differences between native and non-native listeners’ moral decisions. In conclusion, these three different lines of research show how challenging listening conditions can affect communication and possibly also moral decision making.