Thanks for responding! >The spec says: "Generators at the Preset Level are instead considered >"relative" and additive to all the default or instrument level generators >within the Preset Zone." >Both instruments set modEnvAttack and modEnvRelease to 100 ms. The preset >generator of e.g. Polysynth2 sets them to approx. 70 for attack and approx. 50 >for release. > >This makes an attack of 100 ms * 70 = 7 sec >and release of 100 ms * 50 = 5 sec.
I know you didn't write the spec =) but doesn't the "relative" and "additive" mean: Attack of 100 ms + 70ms = 170ms Release of 100 ms + 50ms = 150ms The spec says additive, not multiplicative. Unless I'm missing something? >The modulation in this case affects the filters cut-off freqency. Thus it >needs 7 seconds for the filter to fully open. This is pretty much what I hear. >Dont know about the 1.5 sec you refer to. Just what I heard Vienna do, and I consider that the gold standard since Emu created it at the time SoundFont was designed. But 7sec is closer sounding that 60ms =) >Note however that what you hear is strictly speaking not correct. fluidsynth >currently processes the modEnvAttack in a linear way. According to the spec >(8.1.2 #26) it should however be convex. See here for further reading: >https://github.com/FluidSynth/fluidsynth/issues/153 Thanks for the reference, interesting reading. Garth Hjelte Sampler User _______________________________________________ fluid-dev mailing list fluid-dev@nongnu.org https://lists.nongnu.org/mailman/listinfo/fluid-dev
