Show actual / effective volume in Loudness correction filter
A system-wide equalizer for Windows 7 / 8 / 8.1 / 10 / 11
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#70 Show actual / effective volume in Loudness correction filter
The Loudness correction filter appears to work by further attenuating the higher frequencies as the master volume is decreased. If the master volume is decreased to -6 dB, the lowest point in the graph is 2 kHz at -7.5 dB, resulting in a net attenuation of -13.5 dB at 2 kHz.
Now, is the actual volume being heard (relative to reference) -6 dB or -13.5 dB? I suspect it's -13.5 dB, because when you turn on DynamicEQ in AVR, the bass increases and the display remains at -6 dB, rather than the treble reducing.
Equal loudness countours seem to be centred at 1 kHz. 2 kHz needs to be attenuated even further. So I think the filter should display the effective volume at 1 kHz.