Ok i managed to make it work, so if anyone has the same problem ... Looks like the problem was that i had set the attack in SC4 (there's probably the same problem with the other parameters) to 1.5, that is the extreme left of the slider. Maybe this is just a jack-rack bug, but if i set it to a value higher than 1.5, the plugin works directly after a restart. if this can help someone else... !! Flo > Hi everyone, > > I'm trying to use ladspa compressors plugins in jack-rack, in order to > compress the snares and the kicks coming from my sampler. > I tried the SC4 plugin and the CAPS compressor. Actually,I have the same > problem with both of them. > This is what i do: I set the compressor parameters in jack-rack (in order > to have a "BIG" sound !!! ) and i save the .rack file. But when i restart > jack-rack with this rack, the sound isn't processed at first, i need to > tweak all the sliders one by one to make it compress the sound again. > > Am i missing something ? Does anyone have the same problem ? > > Thanks > > Flo >