is a mixed reality city tour that allows you to travel back in time to Essen in 1887. With the help of the Nreal Light AR glasses and Bluetooth headphones, the real environment is overlaid by virtual reality at certain locations in downtown Essen.
A main challenge of this experience was the unpredictable acoustic backdrop of the real world. The mix had to be as loud as possible but still perfectly intelligible, as NC headphones were not possible due to the user's involvement in traffic.
Voice output
This had to be particularly good to understand, as this was how important informations of the tour were conveyed. The multilingual version had to be adapted and synchronized as closely as possible to the acting performance.
Performance on mobile
Since the experience is delivered via mobile phones on the Nreal, it had to be highly resource-effective with regard to the audio codec, file size and format.
