Very weird! Sounds to me almost like a very quiet sonic boom.

"A former US official recorded a sound outside his home in Havana, Cuba. Injured officials 60 Minutes spoke with said the sound or a feeling of pressure came from one direction."

https://steadfastdaily.com/hea....r-it-diplomat-record

https://twitter.com/i/status/1495560469884686338

HEAR IT: Diplomat Records Sound Linked to Havana Syndrome - Steadfast Daily
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HEAR IT: Diplomat Records Sound Linked to Havana Syndrome - Steadfast Daily

This is eerie, to say the least.