One hit produces two notes: understanding double triggering
Plug your kit in
Don’t guess, measure. The kit check is open to everyone and needs no account.
Check my kitDouble triggering means one physical stroke generates several MIDI events from the same element. You may barely hear it, but it shows up at once in recordings, hit counts and timing analysis.
The eDrumWork diagnostic uses isolated strokes and keeps, for each extra event, its time gap and whether its velocity went up or down.
Two signatures need different answers
An event very close to the main stroke can come from the way the module reads the first rise of the signal. The second note may be as strong as the first, or stronger.
A later, usually weaker event looks more like an echo or a second contact. Both belong to D05, but they do not point to the same family of settings. Timings measured on one kit must never become a universal limit.
Why the test uses slow strokes
Two genuine fast notes can look like a duplicate, so D05 asks for single strokes with enough rest in between. Rolls and double-pedal playing need a different protocol.
Play repeated isolated strokes, let the pad settle each time, and count how many strokes produce a second event. Rimshots and multi-zone cymbals can legitimately send a compound response, so the allowed companion notes must be recognized before calling it D05.
The cost of suppressing repeats
Making the module stricter can remove the duplicate but also reject a genuine fast stroke. Lengthening the initial analysis can add latency or change the velocity. After every change, test both isolated strokes and a fast burst.
Roland, Yamaha, Alesis, Pearl, EFNOTE and 2box modules use different terminology and algorithms. Follow the documentation for your exact model and make the smallest change that works.
eDrumWork shows the events behind its verdict without inventing a mechanical cause.