Logarithmic Frequency response graphs


Why are frequency response graphs always charted on a logaritmic scale?
duddley
Thanks, Eldartford, but I must still be missing something because it seems to me that the x axis would not be any harder to read if the octaves between the decades were spaced evenly on the line. Since the octives themsleves are spaced evenly, what part gets scrunched this way?

I appreciate your patience - Ijust know I'm going to wake up in the middle of the night shouting Aha! soon.
Rec got it right. Human hearing and human music is not linear, but logarithmic in nature. Think about it. As an example, there are eight notes and twenty integer frequencies in the 20Hz to 40Hz octave. There are still only eight notes, but 10,000 integer frequencies in the octave from 10,000Hz to 20,000Hz. A good frequency response graph will highlight the musically relevant note info and lessen the visual impact of the less important integer frequency data.
Duddley, what you propose is a piano keyboard-like scaling, as '61 explained. Yes, both it and a traditional decade-log scale are both easy to read, and appropriate for audio.