# 3.6. Polyphony

Do you hear dropouts in the music? It's possible for KMidi to get behind in doing the many calculations required to adjust the pitch of instrument patches, filter the signal, combine notes, and so on. If this happens, you may be able to improve the situation by using the spinbox on the lower panel to the right. This adjusts the maximum number of polyphonic ``voices'' used at the same time. When you lower the maximum polyphony, you lighten KMidi's burden at the cost of some chorus or reverb effect being lost, or some notes being cut short or actually being omitted altogether. (In some circumstances, KMidi generates extra notes to approximate the effect of midi chorus and reverberation.)