Contribution
Data on the detection of infrasound with both ears
* Presenting author
Abstract:
In our previous hearing experiments on infrasound perception, a compact low-distortion plug-in earphone system (Low-Distortion Sound Reproduction System, LDREPS) was used, which was designed for the monaural reproduction and recording of infrasound in the ear canal of one ear. Among others, the monaural spectral and temporal integration of infrasound (Friedrich et al., DAGA 2020, 2022), the influence of infrasound on the perception of amplitude modulations (Friedrich et al., DAGA 2023), and phase effects with infrasound (Friedrich et al., DAGA 2024) within one ear was investigated. Monaural conditions are, however, less common in everyday life, as environmental sounds usually reach both ears. It is known from studies using sounds in the classical audible range that the presentation of acoustic stimuli to both ears can affect the perception of the stimuli compared to the presentation to one ear (e.g., binaural advantages in detection thresholds, binaural beats). To be able to investigate such effects in the infrasound range as well, we have extended the LDREPS so that infrasound can be reproduced and recorded in both ear canals simultaneously. Here we present first results from hearing experiments in which detection thresholds of different infrasound stimuli were measured with this binaural LDREPS.