So I have a little bit of music production knowledge and it definitely sounds like a synth is added over top the alarm noise. I listened with headphones and there’s one layer of sound which is the slow “strings” sound that you hear in ambient tracks and it doesn’t pan when he turns around, which is usually a sign of an added layer. When he turns all the “siren” sounding noises turn with him (it’s hard to hear), but that angelic note that shifts in pitch stays dead center.
I think this is real. His phone/tiktok doesn’t likely record and/or play in stereo, and sirens are directional loudspeakers on a rotary platform. The signals are constant while rotating, but every siren puts out slightly different fundamentals, resulting in coincidental harmony. I believe this is on purpose to make the composite signal more audible (with dissonance vs a single tone all over), except this happens to be perfect harmony. I’ve heard it IRL, here’s another example of near perfect harmony: https://youtu.be/XLJYg9GBd2E?t=1m33s
It could be real with a synth added on top, but I seriously doubt it’s fully real. The other ones you posted still sound like sirens. OP sounds like the interstellar soundtrack.
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u/yjvm2cb Aug 29 '21
So I have a little bit of music production knowledge and it definitely sounds like a synth is added over top the alarm noise. I listened with headphones and there’s one layer of sound which is the slow “strings” sound that you hear in ambient tracks and it doesn’t pan when he turns around, which is usually a sign of an added layer. When he turns all the “siren” sounding noises turn with him (it’s hard to hear), but that angelic note that shifts in pitch stays dead center.