The rooms are not only used for measurements and experiments, but also for speech recordings, speaker identification and survey reports.
During the breaks in experiments, the subjects can use an internet terminal or relax on a couch in the lounge while sipping hot coffee...
Our EEG system (actiCHamp, Brain Products) consists of 64 active scalp electrodes, several passive electrodes to be used for electrooculography (EOG), and a StimTrak unit allowing to record audio signals along with the EEG signals. For auditory stimulus presentation, we use insert earphones (ER-2; Etymotic Research) minimizing electric noise induction and able to provide a large bandwidth.
A semi-anechoic room (6.2m × 5.5m × 2.96m) is available for acoustic measurements. Also psychoacoustic experiments like sound-localization experiments can be performed.
The room is equipped with:
|Vertical circular array of 22 loudspeakers generates acoustic signals from almost every direction. The listener is placed on a computer controlled swivel chair.|
The loudspeaker array is mounted in a semi-anechoic room (3 x 3 m). It consists of 91 loudspeakers, arranged in a spherical order, and 2 subwoofers. This high number of loudspeakers enables many possible demonstration, for instance: