If I understand correctly:
For acoustic SPL and electric voltage, 20dB is a tenfold rise. For (electric or acoustic) power, 20dB is a hundredfold rise; 10dB is tenfold.
So:
appx. 6dB SPL is a doubling of spl and a fourfold of power, and appx. 3dB is a doubling of power.
The human ear is quoted as having a 120dB range. This spans a millionfold spl (10E6 = 6 20dB steps) and a trillionfold (US convention, 10E12 is 12 10dB steps) power range.
You guys made me look it up. (grin)
cheers ww
For acoustic SPL and electric voltage, 20dB is a tenfold rise. For (electric or acoustic) power, 20dB is a hundredfold rise; 10dB is tenfold.
So:
appx. 6dB SPL is a doubling of spl and a fourfold of power, and appx. 3dB is a doubling of power.
The human ear is quoted as having a 120dB range. This spans a millionfold spl (10E6 = 6 20dB steps) and a trillionfold (US convention, 10E12 is 12 10dB steps) power range.
You guys made me look it up. (grin)
cheers ww