When the API for audio levels changed to logarithmic, and the option to still use linear disappeared, I had to rewrite our panel interace to VMIX to cope with the logarithmic values.

To explain, API going out that changes audio fader values is still linear and integer, but the API values that show current settings is now only logarithmic. Both are values 0-100, the logarithmic values give fine control over small values at low slider positions.

I could not work out the maths, it did not seem to be any standard log function curve. I'm no mathematician, but I tried different number bases, to no avail. It's almost like you're doing a log of a log, or something.

The lower values especially seem to be far lower than I would have expected. None of which would be a problem except my formulae for log to linear didn't match. I ended up building a table of values in steps of 5, hardcoding the 1st 16 values, and interpolating the values between those steps... it works, sort of, but would be better to put in the right algorithm, and maybe useful to other developers.

Thanks

Geoff.

Of course.. that's why I could see powers of 25 in the values.

Many thanks
Geoff.