• Sockenklaus@sh.itjust.works
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    1 year ago

    You clearly mean:

    14: 1 + 8 = 9 (not db 7)

    Someone else in this thread correctly stated:

    “Chop of last digit, double it and subtract from what is left”

    14: 1 - 8 = -7. (dB 7!)

    Math is awesome, I didn’t know this trick!