Decibels to Voltage Gain and Loss convert conversion

Amplifier Conversion
Gain means signal strength (amplitude) or amplification.
In audio it is always the voltage amplification. Forget the power.

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● Convert Decibels to Voltage Gain / Loss ●

● Convert Voltage Gain / Loss to Decibels ●

• Voltage and Gain •

Enter any two values - the third will be calculated.

Voltage Ratio and Voltage Level - sengpielaudio

V₀ = 1 Volt

Amplification and Damping

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The calculator works in both directions of the ↔ sign.

Gain and Loss

Gain is:
1) A knob usually found at the top of each input channel on the sound board, used
to set input levels of the separate channels to relatively equal positions.
2) The amount of increase in audio signal strength, often expressed in dB.

Gain:The measure of how much a circuit amplifies a signal. Gain may be stated as
a ratio of input to output voltage,current or power, such as a voltage gain of 4, or a
power gain of 2, or it can be expressed in decibels, such as a line amplifier with a
gain of 10 dB.

Conductive Hearing Loss: a loss of sensitivity to sound, resulting from an
abnormality or blockage of the outer ear or the middle ear. The most common
cause of conductive hearing loss is middle ear fluid or infection. Other causes
include wax build-up in the ear canal, a hole in the eardrum, or damage to the tiny
bones of the middle ear.

Gain or Loss: These are reciprocal numbers; they will be given in several ways.
Usually it is expressed as a ratio. It can be stated as ratio of the primary to
secondary impedances of an audio transformer.
This is given by gain or loss =
This voltage can also be expressed in dB as well.
It is given by the formula:
also voltages across the primary and secondary.

dB (decibel): A technique for expressing voltage,power, gain, loss, or frequency in
logarithmic form against a reference.Typical references include volts, watts or Hz.
DeciBels are calculated using the expression: Level in decibel L = 20 × log (x/y) or
L = 10 · log (x/y).

Voltage Controlled Attenuator (VCA):
Similar to a voltage controlled amplifier except that the amplifier will, with no control
voltage sent to it, have no gain and no loss; as an increasing control voltage is sent
to it, the amplifier reduces gain, causing an amplitude loss of signal strength.

Sound level, loudness, and sound pressure are not the same things.
There are variations in individual perception of the strength of sound.
The sound pressure measured twice as much gives 6 dB more level.
The sound perceived twice as loud needs roughly a sound level increase by 10 dB.

Common Gains and Losses Expressed in Decibels

Ratio (OUT / IN)	Voltage Gain (dB)	Power Gain (dB)
1/1000	−60	−30
1/100	−40	−20
1/10	−20	−10
1/5	−14	−7
1/2	−6.02	−3.01
1	0	0
2	+6.02	+3.01
5	+14	+7
10	+20	+10
100	+40	+20
1000	+60	+30

How many decibels (dB) level change is twice (double, half) or three times as loud?

The word "power amplifier" is a misnomer. Power is not really something
that can be "amplified". Voltage and current can be amplified. The term
"power amplifier" although technically incorrect has become understood
to mean an amplifier that is intended to drive a load such as a loudspeaker.
We call the product of current and voltage gain just "power amplification".
The total energy within a closed system due to the conservation of energy
is neither increased nor decreased.

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reference voltage V₀:
measured voltage V:
gain G or L_V:		dB

gain factor v = V₂/V₁: for field quantities, e.g. voltage	↔	amplification level L: voltage level dB

0 dB = voltage gain v = 1