Birdwatch Note Rating
2024-01-02 11:03:31 UTC - HELPFUL
Rated by Participant: 2F0298B8A52F9BBCB09683EB1410F191A62EC7C8A732A0CD3C0F5B9AD05DBD83
Participant Details
Original Note:
Negative dBs can't exist acoustically, as it represent the sound pressure level (SPL) of an acoustic sound wave. 0dB SPL mean absolute no air particles movement which is impossible outside vacuum conditions. Negative dBs can exist as a reference to a base (zero) dB level. https://www.animations.physics.unsw.edu.au/jw/dB.htm
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