Echelles de fréquences et de gain

Voila le descriptif de l'échelle de fréquence et de gain ( par magnus)

The frequency axis starts at 10 Hz and ends at 20 kHz.
The lines are as follows (all in Hz):
10 (the very left), 20, 30, 40, 50, 60, 70, 80, 90,
100, 200, 300, 400, 500, 600, 700, 800, 900,
1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000,
10000, 20000 (the very right)

The gain axis goes from -12 dB to 12 dB, with each line corresponding to 6 dB.