Fix path fading problem in auralization
Using the wedge example, the artefacts in the auralization should be debugable.
By looking only at the two audio blocks before and after the artefact, the cause should be identifiable. Here, both the paths found by Pigeon and the generated filter should be examined. If nothing out of the ordinary can be found there, the problem might lie in VA's Outdoor Noise Renderer.
Afterwards, the filter generation in the ITA toolbox can be adapted accordingly.