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FAQ and troubleshooting

For desktop MIDI, use a current Chromium-based browser. The web studio calls Web MIDI directly; Safari and Firefox do not provide that same path. On iPhone or iPad, use Rhythma’s iOS app MIDI connection flow.

MIDI is performance data, not audio. Normally you hear the drum module directly. To hear Rhythma samples while testing, open Settings → MIDI → MIDI Monitor and enable Play drum samples for MIDI hits. Leave it off if the module is already audible, or you may hear doubled attacks.

Bluetooth audio is the usual cause. Use wired headphones and route Rhythma and the module through the same module AUX/MIX input, mixer, or interface. Then run Timing Alignment.

Why does a pad show “Unknown” or the wrong voice?

Section titled “Why does a pad show “Unknown” or the wrong voice?”

Select the correct kit profile and check MIDI Monitor. An Unknown (Note …) / Unmapped hit needs a different profile, MIDI Learn — Create Custom Profile, or a corrected note assignment on the module.

📷 SCREENSHOT: FAQ troubleshooting collage showing Connect MIDI, MIDI Monitor, and Timing Alignment

Keyboard input has fixed velocity. Mixed input or too few repeated hits can also make velocity unreliable. Use MIDI and a broad, consistent velocity range.

Reconnect the device, reload, choose Connect MIDI, and allow the prompt. If previously blocked, reset MIDI permission for the site in browser settings. Confirm the page is secure and no other application owns the device.

Watch MIDI Monitor. If the module sends duplicates or very low-level leakage, adjust its threshold, sensitivity, retrigger, and crosstalk settings. Those controls are hardware-level, not Rhythma settings.

Close heavy tabs and audio applications, reconnect the output device, and interact with the page once to unlock browser audio. Avoid changing audio devices mid-attempt; reload and realign after changing the route.

Still stuck? Email admin@rhythma.pro.