EEG Hyperscanning in the Internet of Sounds: Low-Delay Real-Time Multi-Modal Transmission Using the OVBOX

The OVBOX (ORLANDOviols consort box) is a tool for immersive network audio transmission with low delay and interactive spatial rendering on each client. In this paper, we demonstrate its extension to the transmission of electroen-cephalography (EEG) signals, which forms the basis for low-delay hyperscanning in telepresence scenarios. In addition to microphone signals, motion data, EEG signals and any other data can be exchanged in the Open Sound Control (OSC) or Lab Streaming Layer (LSL) protocol. This makes it possible to analyse several modalities simultaneously over the Internet. The methods used are described, a performance analysis and example hyperscanning data of a motor/audio task are presented.