The recordings were made with the Sennheiser Ambisonic microphone and the encoded B-Format FuMa files are ready to use for speaker arrays of any number.
Berlin City Ambiences is available in two versions: Ambisonic and Stereo
The Ambisonic version delivers 4 channel B-Format (FuMa, WXYZ) files recorded with the Ambeo VR microphone in upright position.
The Stereo version contains the same number of files with equal playing length, but, as the name suggestions, only in stereo versions.