-- card: 15650 from stack: in -- bmap block id: 0 -- flags: 0000 -- background id: 3551 -- name: -- part contents for background part 4 ----- text ----- a parameter of filters that increases the amplitude of frequencies near the cut-off point. -- part contents for background part 3 ----- text ----- resonance -- part contents for background part 16 ----- text ----- 177