Roland SPD-20 Preventing Double Triggering of Kick Pads and Other Instruments (Mask Time, MSk)

fig.60-c

(Available Settings) 1–16

Use this setting when your setup uses mainly acoustic drum triggers.

Compared with drum pads, the trigger signal that is output from an acoustic drum trigger may have unnec-

essarily long attenuation times, and erratic waveforms. Multiple soundings from a single strike to the head

are more likely to occur. You can eliminate such symptoms by increasing the Trigger Cancel value.

fig.61

If the Retrigger Cancel value is extremely high, individual notes may drop out more readily when you

strike repeatedly or play rolls, so set the value as low as possible.

The problem of double sounding can also be eliminated using Mask Time. However, Mask Time can-

not detect trigger signals if they occur within the specified amount of time after the previous trigger

signal was received. Retrigger Cancel detects the attenuation of the trigger signal level, and triggers

the sound after internally determining which trigger signals were actually generated when the head

was struck, while weeding out the other false trigger signals that need not trigger a sound.

Trigger signal attenuation time varies with the type and workings of the connected acoustic drum

trigger.

When using acoustic drum triggers, it is recommended that you mute the acoustic drums to suppress

excess head vibration.

For more on how to set these values, refer to p. 48.

Preventing Double Triggering of Kick Pads and Other Instruments (Mask Time, MSk)

fig.61-a

(Available Settings) 0–64 (in milliseconds)

Make this setting when using acoustic drum triggers fitted to other manufacturers’ kick pads or to

acoustic drums.

Sometimes when playing the kick pad or similar instruments, you may be trying to depress the kick

pedal to have the beater strike the head just once, but the beater ends up striking twice or more, result-

ing in mistaken triggering. After a trigger signal is detected, Mask time prevents detection of any sub-

sequent trigger signal only within the set time period, thus eliminating mistaken triggering.

However, since with Mask Time set, absolutely no trigger signal is detected in the set period, in order

not to lose any sounds when playing repeated strikes, set the level as low as possible.

PD-7 Waveform Waveform output from acoustic

drum triggers and other devices

The peak here causes triggering

00 Time

Level

Time

Level

NOTE

MEMO