Mask Time is a trigger parameter in the TD-50 that can be used to reduce unwanted "ghost" notes that may occur from a pad after the initial strike. This parameter is primarily used for the kick drum pad. For example, when playing on the kick pad, the kick pedal's beater can bounce back and hit the head a second time (or more) immediately after the initial intended hit.
From the factory, the Mask Time is already set to the recommended values for each pad, however if you're experiencing multiple notes being triggered after the initial strike on the kick pad, increase the Mask Time to eliminate the additional notes. Here's how:
1. Press the TRIGGER button.
2. Press the PAGE DOWN button to access the "TRIG 2 ADVANCED" page.
3. Press F3 (SCAN).
4. Cursor down to highlight the Mask Time value.
5. Hit the kick pad to select it.
6. Turn the dial to increase the value while playing on the kick pad up until the ghost notes stop.
7. Press the KIT button when you're finished. The new setting is saved automatically.