dB Addition Calculator (Two Sound Sources)
Add two sound levels in decibels logarithmically. Two equal sources sum to +3 dB above either alone.
Combined Level
83.01 dB
Increase Over Loudest Source
3.01 dB
Add two sound levels in decibels logarithmically. Two equal sources sum to +3 dB above either alone.
Combined Level
83.01 dB
Increase Over Loudest Source
3.01 dB