These 360° videos are recorded with an array of 4 Gopro Session cameras.
The audio track is recorded with an Eigenmike (32 channels) and
processed through a FIR filter matrix which synthesizes 2nd order
Ambisonics (9 channels), which is packed to the TBE 8-channels format
natively supported by Facebook and by the Oculus Video app on the Samsung
Gear VR device.
These recordings, indeed, can currently be viewed and listened properly
only on a Samsung Gear VR system, which fully employs the complete spatial
resolution made available by the TBE format.
If you do not own a Samsung Gear VR device, these recordings are not for you.
Please download them in the Youtube/Jump format (1st order Ambisonics, 4 channels),
which instead can be viewed on Google Cradboard devices, which are available in 
the other folder named Jump-1st-Order.