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have read aloud

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Acoustic guitar filmed at 1.000 frames per second

A guitar string is vibrating at a given tuned frequency, this vibration is way to fast so see with the naked eye. It becomes blurry.

This time, no additional equipment was used besides the camera, lights and the vintage, probably hand crafted acoustic guitar.

This time, the actual string sound was used, this is rare in slow-motion footage. The video is 40x slower than real time, so the frequency of the strings would be 1/40 of the original. In case of the higher E string on the right, this would be ~13Hz and below the human hearing.
The audio is "only" slowed down to 1/10, so the 330Hz string is at ~33Hz (plus overtones), in total below 100Hz, so it is barely hearable.

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