We rarely work on simulation projects, but this one took our enthusiasm for field recordings into the next orbit. The researchers at Signia Lab sought to test their hearing aids in realistic conditions, but overcome the challenges of partially controllable environments like weather and acoustics. They established an auditory VR lab to simulate everyday situations using advanced holophonic audio technology called Wave Field Synthesis. For a superb natural and realistic listening experience, we developed the TAUCHER tree, a high-resolution 3D audio field recording system with 15 microphones and a diameter of 3 meters. We could move the fully assembled setup from one place to the next and be ready for recording in less than five minutes. Sitting in the lab, research participants could close their eyes to be transported into situations astonishingly similar to everyday life. Finally, to test speech intelligibility in the context of these virtually reproduced locations, we invited professional actors into the studio and recorded life-like conversations typical to everyday situations. A feature that would not have been possible in real-life scenarios: We incorporated these improvised dialogues into the scenes with various levels of difficulty. The conversations could be set at multiple distances and spatial positions, and the intensity of the ambient noise could also be varied.