There's a trick that we used to use back in the day to remove everything mixed to the center of a stereo recording. It was called OOPSing, which stands for Out Of Phase Stereo. Basically, you reverse the polarity of one channel and mix it with the other channel. Anything that appeared in both channels, i.e. was mixed to the center, would be cancelled out by the inversion.
I was assuming that the Borrowings podcasts would be mono, and that OOPSing them would result in silence. However, it doesn't. The theme tune, and some of the bits of dialog and sound effects, remain. In theory, this should only happen if those sounds are already out of phase.
I'm perplexed, but I've also run out of time to investigate this for several days, so I thought I'd put it out there in case anyone else was interested in checking it out. It could simply be because it's not really a mono recording. It could be unintentional artifacts due to the software they use to edit the podcast. Or it could be a way to hide information in an audio recording.
Sounds technical and too complicated for me. However, I did spend some time yesterday trying to see if anything was hidden in the audio files by viewing the file as a Spectogram. That is easy to view. I tried a couple of the files and they revealed nothing. Still intend to look at the rest of them. I've read about other ways to hide messages like Frequency Modulation, Least Bit Algorithm, and Echo Hiding and your Phase Coding...but I think those are complicated and one would need to have a good deal of experience with how to manipulate audio files and/or computer programming language like Python to decode. Since I expect that very few of us have that expertise I hope those methods are not used.
“There is nothing more deceptive than an obvious fact.” ― Arthur Conan Doyle
I have established my place in the puzzle-solving pecking order for Vaults 1, 2 & 3.
diggitydoodog: I've had dubious documents for 2 years now and finally went to work on it. Would anyone on here be willing to PM me the answer or post it in a spoiler so I can check the solution?
Sept 17, 2020 11:44:39 GMT -5
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distantsmoke: It’s snowing here in NE Kansas! Yay!
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rob: There are 10 types of people in this world: Those who understand binary, and those who don't.
Nov 17, 2020 17:47:10 GMT -5
AMH: Wow, I never realized that collecting and doing puzzles could make you a millionaire... If you were a billionaire !
Nov 18, 2020 23:54:06 GMT -5