Pulse Width 0-1 or 98-99 no sound or sounds wrong? 28 April 2022 14:32 Updated Sometimes you may want a thin pulse width, and you may notice after dialing in a pulse width of 0-1 or 98-99 some keys appear dead or the sound is barely there. At extreme pulse widths, there will be a voice -to–voice and a frequency dependent variation. When really thin, the analog electronics are just not going to be perfect. This is especially true on the upper end of the range around 95-99, where there may be some fluctuation of the pulse width signal. Calibrating the filter can get them as close as they're going to get. If a thin pulse is desired, use the low range of the keyboard, where voice-to-voice consistency is much better. If it were perfect (i.e. digital), a pulse width of 99 is the same as 1, just inverted, so it sounds the same and either value can be substituted. Related articles Key Velocity and Envelope Amount Audio Mod explained A Brief Explanation on Calibration