Patrick Perdue3d ago

#AudioMo day23:

Did you know that there is hidden morse code all throughout Mike Oldfield's 'Tubular Bells' album?

Somehow, probably during the two-track mix-down stage of the album, the CW from a powerful, very low frequency transmitter about 37 miles north of the studio in which this album was recorded found it's way to tape. It's centered at 16 kHz, and so low in the mix that you can't actually hear it... at least, not without some help.

This is a very short, not particularly comprehensive demo using two different methods -- a pair of stock Reaper plugins and an SDR package to mostly isolate this morse transmission, which is heard throughout the entire album.

References:
Hidden Morse Code in Tubular Bells https://madpsy.uk/link-between-the-soundtrack-of-the-exorcist-and-amateur-radio/

The Hidden Signal Inside A Platinum Selling Album - Tubular Bells https://www.youtube.com/watch?v=o3UJAfuvniI

Show threadJamminJerry
@BorrisInABox I think your way exposed it a bit better, meaning I could hear it better, and not the second way you showed it, running it threw a decoder. maybe that is just my ears though. that was really awesome to find out, and I never knew this until just now. thanks for that.
Jun 23 at 7:33pmWeb
Show threadPatrick Perdue3d ago
@JamminJerry The filter from SDRSharp is actually closer to what it would have sounded like if you tuned into the frequency directly back in 1973.
Show threadJamminJerry3d ago
@BorrisInABox for me, I couldn't even here the cw in that though. the way you did it, I was able to hear it, and tell it was actually there.
Show threadPatrick Perdue3d ago
@JamminJerry Other way around for me, almost.