Volume conversions proposals

[complynx]

I've approximated the volume converters...
I think, including them may come in handy for someone

int_vol(vol){  ; mixer -> internal
    if vol < 0.5
        Return 0
    Return Min(Max(0.05030509 * exp(ln(vol) * 1.649729), 0) 100)
}
mix_vol(vol){ ; internal -> mixer
    if vol < 0.07 ; ~ 0.5 in the mixer scale
        Return 0
    Return Min(Max(6.12394 * exp(ln(vol) * 0.6061601632753016), 0) 100)
}