Free trial

Try it now
in your browser
— no device needed

Find out whether you tend to be ahead of or behind the beat with sound and with visual signals, then get practice tuned to the result. On a PC press the space bar; on a phone, tap the screen.

🔊 Please turn your sound on · No sign-up · Precise 1/1000-second measurement is done with the B-Trainer device
MeasurePracticeReport

One-minute timing check
no device needed

We check which signal, sound or visual, you meet ahead of or behind the beat, and build a short practice from it. No sign-up — nothing is saved.

1MeasureSound · visual, about 1 min
2Practice4 sets, about 2 min
3ReportAhead · on the beat · behind
Age

🔊 Please turn your sound on · PC: space bar, phone or tablet: tap the screen
Results are for reference only; precise measurement is done with the B-Trainer device.

Tap herePC: space bar · phone: tap

Report

Practice on this visit

These results are measured in a browser and are for reference only. A keyboard, screen or speaker can add a delay of tens of milliseconds. Nothing is saved — the results stay on this screen.

Precise measurement with the device

B-Trainer measures both hands and both feet to 1/1000 of a second, then builds training on the measurement, with web and AI reports.

The research behind it

Published studies on timing, rhythm, attention and movement that B-Trainer was developed on.

See the research