[proton007]

   Wouldn't it just be a 1.4x increase in the pressure? And not volume? The actual volume gain would only be 1.2?

 
+3 dB = twice the power (Power).
+6 dB = twice the amplitude (Voltage and sound pressure).
 
 
Depends on which acoustic theory you consider, whether a doubling of level, or a doubling of pressure causes a doubling of loudness. If going by pressure, a 6db increase would be 2x, and 3db 1.4x.
The 10dB is a widely accepted belief of loudness (by experimentation), but the 6dB (pressure change) is a recently studied one.

 

[adupree]

   
+3 dB = twice the power (Power).
+6 dB = twice the amplitude (Voltage and sound pressure).
 
 
Depends on which acoustic theory you consider, whether a doubling of level, or a doubling of pressure causes a doubling of loudness. If going by pressure, a 6db increase would be 2x, and 3db 1.4x.
The 10dB is a widely accepted belief of loudness (by experimentation), but the 6dB (pressure change) is a recently studied one.

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