Turning up the volume
Generally power is expressed in watts. The gain is the ratio of the output power to the input power. Gain = (output power)/(input power) if the gain is expressed in terms of log(base10) it is known as Decibel power gain Decibel power gain = Log10(Gain)dB if 1milliwatt power is taken as reference then Decibel power gain = Log10(Output power/1 milliwatt)dBm
The voltage gain of an amplifier is 200. The decibel voltage gain is? Answer Gain in dB = 20 * log 200 = 46 dB
Unit of measurement for sound
Audio engineers talk about the "JND", which stands for "just notiecable difference", which is a 3 decibel gain. That 3 decibel gain requires a doubling of amplifier power. For an amp to sound, subjectively, "twice as loud" requires a tenfold increase in power (300 watts instead of 30 watts).The decibel scale is logarithmic, not arithmetic.
The decibel is used to express gain or loss relative to a known value. In fiber optics, the decibel is most commonly used to describe signal loss through the link after the light has left the transmitter.
The Welsh word for 'decibel' is desibel.
What are the uses of DECIBEL?
Negative decibels mean damping (loss) and positive decibels mean amplification (gain).
How do you use the word decibel in a sentence?What is decibel used for?
The definition of acquire means to gain possession, to have, or to get.
The abbreviation for decibel is dB.
The bell is a large unit, so a subunit, a decibel, is usually used. There is no subunit of decibel.