Help with 'pseudo' Log with 6dB Headroom

by **Walter Sommerfeld** » Sat May 23, 2015 2:53 pm

Hi,

i'm again a little lost with my little mathematician knowledge here...

I need a Midi output value (CC 0-127) that mimics the behaviour in this RTF doc:

Thanks in advance!
Walter

P.S.: All values have an added 0.01 shunt (0.5 > 0.51 = -6dB, CC 64)...
i think i used this trick to compensate the rounding errors: float > Integer

by **MyCo** » Sat May 23, 2015 4:55 pm

Just a quick guess...

by **martinvicanek** » Sat May 23, 2015 5:29 pm

That looks more like a square mapping rather than (pseudo)log to me. Which is reasonable according to this reference. :geek:

Here is my attempt at an implementation.

by **Walter Sommerfeld** » Sat May 23, 2015 8:45 pm

Thanks Guru's,

like i mentioned before - had no clue what's behind it...

Never would expect a Midi Velocity behind this curve martin...

Added a round float with 1 decimal => works fine here

Now it's time 4 a scotch...

Cheers,
Walter

Help with 'pseudo' Log with 6dB Headroom

Help with 'pseudo' Log with 6dB Headroom

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Re: Help with 'pseudo' Log with 6dB Headroom

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