Rodman
dB IS a logarithmic scale;
Our ears: you are obviously referring to the "equal loudness chart" or phon -- which is a measured and plotted... "chart" -- not a formula. This chart shows how sensitive/ or otherwise we are to sounds of identical loudness but of VARYING frequencies; BUT, the question is about amplification watts.
Doubling the power yields +3dB spl, as the poster correctly notes above. +6dB spl is twice as much pressure. Whether or not +10dB spl is perceived (by some) as a doubling of power is neither here nor there. Regards.
Our hearing is logarithmic, while the db or power scale is linear.Oh my goodness, Rod, no!
dB IS a logarithmic scale;
Our ears: you are obviously referring to the "equal loudness chart" or phon -- which is a measured and plotted... "chart" -- not a formula. This chart shows how sensitive/ or otherwise we are to sounds of identical loudness but of VARYING frequencies; BUT, the question is about amplification watts.
Doubling the power yields +3dB spl, as the poster correctly notes above. +6dB spl is twice as much pressure. Whether or not +10dB spl is perceived (by some) as a doubling of power is neither here nor there. Regards.