A whoosh from a plastic diving fin. "Slicing the air" from the edge side. Take 1/2 Recorded 2025 01 25 on a Rode NT5 A-B 20cm appart setup with Tascam FR-AV2, and WS8 windshields. Trimmed and faded in/out in Audacity. Maybe some de-noise added. Speeding up or slowing down whooshes often gives nice results! You may also want to set it to mono or use only one side! Attribution is greatly appreciated but not required. Recommendation : X sound by Sadiquecat on <a href="http://Freesound.org" rel="nofollow">Freesound.org</a> in CC0 licence. Hope you enjoy :) PS: Id love to hear how you use this sound, feel free to link your creations or share how/why you listen to this :)