Theories on the Whisper at the End of CloverfieldS

Spoilers ahead, dorks. So Josh writes in to say that he's deciphered the whisper at the end of Cloverfield by doing some sort of fancy backwards-unmasking thing. Here is an unmasked, de-backwardsized MP3 of the whisper — he claims it says "it's still alive," but all I could hear was "ppphhhh phhhh huuuuh." Other theories (without backwards masking) include the idea that the speaker is saying "help us," or "15 minutes to hammerdown." Director Matt Reeves told us earlier today that it's definitely decipherable and does mean something, so your guess could be right.