Hi David, Now that is it in a formulated nut shell! That does make better sense of various variables.
Thanks! GrahamG On 4/12/11, David Henningsson <di...@ubuntu.com> wrote: > On 2011-04-12 12:44, Graham Goode wrote: >> Hi David, >> >> ["base reverb level" in soundfont + CC91] level does not make >> mathematical sense to me. >> >> Base reverb level is given in % value, CC91 is 0-127. What is the >> conversion? > > First, in the soundfont we have a reverb level at the instrument level, > which ranges between 0 and 1, call this "I". > Second, in the soundfont we have a reverb level at the preset level, > which ranges between -1 and 1, call this "P". > Third, if not overridden by the soundfont, there is a reverb modulator > that tells that CC91 should affect the reverb level, which ranges > between 0 and 0.2, call this "M". IIRC, it's linear, so M = CC91/127 * 0.2. > Fourth, the global FS reverb level, which we call "F". > > Take the sum of I, P and M. Clamp it to be between 0 and 1 (i e, if > greater than 1, it's 1, if less than 0, it's 0). Multiply with F. > > Reverb level = F * clamp(I + P + M) > > Hope that explains what you need to know as I might not have time to > give more explanations today. > > // David > _______________________________________________ fluid-dev mailing list fluid-dev@nongnu.org http://lists.nongnu.org/mailman/listinfo/fluid-dev
