This is a recording of a quadcopter/drone starting up. Next, it hovers around from both sides of the stereo spectrum then flies off into the distance. This was recorded with the mid-side mic technique using high quality microphones to ensure a, solid, balanced and mono compatible track. Mid-side is a very versatile recording format. Gear: Schoeps miniCMIT(shotgun mic) Schoeps CMC 5u with a MK8 capsule(figure 8 mic), Sound Devices Mixpre-6 field recorder.