Device setup

Do this once before your first battle. Nothing here is sent anywhere — it stays in this browser.

1 · What's supported

Chrome on a desktop or laptop computer — checking…
Page opened over https (or localhost) — checking…
Tested rig: Pioneer DJ DJM-S9 over USB. Other audio interfaces may work but are not tested.
Phones and tablets: you can judge, vote and watch reveals, but recording is not supported — checking…

2 · Input and output

Chrome will ask for permission.

Input

Output

3 · Level

–

Aim for peaks around −6 dBFS (−12 to −3 is fine). Never touch 0 — a clipped take can't be fixed. Below −30 the noise gets louder when takes are levelled.

4 · Latency

Allow the microphone to see this device's latency.

Your recording offset is calibrated once with a loopback test (beat out → back into the input). On the tested rig it measured about 21 ms. There is no slider to shift a take after recording.

5 · Test