I completely agree. I bet I could take a leaf blower, and with the right application of air on that size of a fire, blow it out. On a fire that small, it doesn't take much air to change the fuel-air mixture creating a fire that won't burn.
Best illustrated when you throw a match at a small container of gasoline, and it flies into the gas, and is put out by the fuel. But if you slowly move it towards the gas, eventually it will start a fire, because the match passes slowly enough through the right air mixture to allow the gas to burn.
PSA I don't recommend doing this. We did this in the fire service as a training example. We also had full body bunker gear, helmets and the guy lighting the gas was also wearing a SCBA to prevent any sort of flash fire injuries. Gas and fire are really, really dangerous.
There's a limit to db, something like 190, where the noise creates a vacuum followed by a blast wave, followed by a vacuum and so on.
Get something that makes that kind of noise next to a fire, then something on the other side of the noise (away from the fire) that either dampens or cancels the noise travelling away from the fire, and they might be onto something.
Best illustrated when you throw a match at a small container of gasoline, and it flies into the gas, and is put out by the fuel. But if you slowly move it towards the gas, eventually it will start a fire, because the match passes slowly enough through the right air mixture to allow the gas to burn.