4 ms·
> A closer examination of one recording reveals it’s not just a single sound. Roughly 20 or more different frequencies, or pitches, are embedded in it, the AP d
by wyldfire 9y ago
> A closer examination of one recording reveals it’s not just a single sound. Roughly 20 or more different frequencies, or pitches, are embedded in it, the AP discovered using a spectrum analyzer, which measures a signal’s frequency and amplitude.
Did anyone try decoding it? GMSK, FSK, BPSK, ASK?
- seandougall 9y agoAP filtered—sorry, "enhanced"—it to remove background noise before posting it to Youtube, where it's encoded with lossy compression. So if there was any signal embedded in it, there's a decent chance it's been obliterated.
- owebmaster 9y agoSure. What a bad coincidence. But let's trust them, as it might be a weapon of mass destruction /s