The first individual practice of the soundwalk took place in November 2021 in The Hague. Approximately ten people participated in the soundwalk, taking turns to use the first prototype headset during the roughly half-hour walk.

The four locations, for which the sound processes were pre-designed, were marked on the map that the participants were familiar with prior to the soundwalk. Each participant could switch between the sound processes using the graphical interface on the phone.