Decibel is a factor or a ratio and no unit.
If you have 1 volt and you damp it to 1/4 volt then you will get a damping of 12 dB.
Voltage daming = 20×log (1/4) = (-)12 dB.
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The usual symbol for decibels is dB.
An SPLOIUYTR machine measures decibels.
•Sound can be measured in many ways such as decibels. There is a special machine which you can by that measures how many decibels something makes. A pin makes 10 decibels where as a loud persons or a stereo can make up to 80 decibels. Volume is measured in decibels. So Frequency is measured in hertz
in what
no