Duration: Sept 2020 - Sept 2022

Funding:

  • internal (FWF project planned as follow-up)

Objective: 

The perceived azimuth of a target sound is known to depend on the azimuth of a precursor sound. Specifically, a target presented in some azimuthal proximity of a precursor is perceptually shifted away from its “real” azimuth, typically away from the precursor. This effect occurs only if the target and precursor share the same frequency region. Also, it appears to be specific to the location rather than the binaural cues involved, i.e., the interaural time difference (ITD) and the interaural level difference (ILD). Recent physiological studies attributed the effect to an adaptation mechanism at the earliest level of binaural processing. This study further characterizes the context effect and attempts to elucidate the underlying mechanism, focusing on ILD cues imposed on high-frequency sounds.

Link to follow-up project (in progress)