DSP Robotics Support

Posted: **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

Posted: **Sat May 23, 2015 4:55 pm**

Just a quick guess...

Posted: **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.

Posted: **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

DSP Robotics Support

Help with 'pseudo' Log with 6dB Headroom

Help with 'pseudo' Log with 6dB Headroom

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

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

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