Have you ever seen a negative decibel anywhere? Say for example -6 dB, what would be...
Have you ever seen a negative decibel anywhere? Say for example -6 dB, what would be your interpretation of this number ?
Homework Answers
It is also possible to have negative sound levels: - 20 dB would mean a sound with pressure 10 times smaller than the reference pressure, i.e. 2 μPa.
In the case of expressing sound levels in the context of human hearing, 0 dB means that you are right at the threshold of human hearing ability. A positive dB value means that the sound is a few times louder than the threshold, while a negative dB valuemeans that you are a few times softer than that threshold.
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