Before
After inversion
Meaning: load becomes quiet and vice versa
Say, we have a 0 dB to 100 db scale
100 dB → 0 dB 90 dB → 10 dB … 50dB → 50 dB … 20 db- > 80db 10 dB → 90 dB 0 dB-> 100 dB
Good idea!