| ▲ | IsTom 2 days ago | ||||||||||||||||
> Decibels aren't units... they are ratios. Until they are a ratio to a specific arcane reference level as mentioned in the article. | |||||||||||||||||
| ▲ | grues-dinner 2 days ago | parent [-] | ||||||||||||||||
It's not that arcane, it's referenced to a sound pressure level of 1 pascal. Which, yes, is still arbitrary in that it all ends up back at the arbitrary values of things like metres, seconds, kilograms, etc. Volts per pascal might make sense in some contexts (like your input buffer power supply), but log volts per pascal makes sense in others, particularly for audio applications where you stack gains and attenuations onto an already-logarithmic domain. | |||||||||||||||||
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