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I found a free infrasound detector app for Android phones. It uses the phone's microphone and accelerometer to detect/log infrasound between 4Hz and 30Hz. I'm thinking of taking it to the zoo when it reopens to see what happens.

Thank you for posting this as that would make an excellent research tool in the field. I guess it's a good thing that I'm old school and still use an Android lol. Now I have even less of a reason to update to an I Phone.

Very cool, thanks gigantor! One of the issues with detecting infrasound is the many false triggers. This was the result of the project I am reading about from the University of Vienna; "Acoustic Detection of Elephant Presence in Noisy Environments". Try running your detector on the close up noiseless sound file from GuyInIndiana below.

I would be interested to find out if anyone who's had encounters with these beings has ever detected infrasound. I know there's a lot of discussion about it and people talking about being "zapped" before but I think maybe that could be contributing factor from the survival fight or flight mechanism of fear.

Was in the woods today, but was sighting in my new hunting rifle. Ruger Predator in .308 with a Nikon 3x9 P-Tactical scope. Met my brother at the informal range, which was the site of a clay mining operation back around WWII. Rifle did OK, with 7/8" group at 100 yards using handloads, but nothing special. Hoping to get it down to 1/2" with some more load development. No sign of Bigfoot, but the prolific amount of wet clay made tracking every animal in the area easy. But, frequent heavy rains erased most tracks every couple of days.

Downloaded. We will run it through its paces this weekend durring a training event.