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Test Utilities

Audio / video sync test

A ball strikes a wall once a second — the click plays at impact, so any AV-sync drift jumps out.

Put this on the target display + sound system. If the click reaches your ears the instant the ball hits the wall, you're in sync; any lead or lag is delay to dial out.

press start — then click the stage to go fullscreen
how it works

A ball travels across the stage once per second; a click plays the instant it strikes the wall. Press start, fullscreen the page on the target display, and watch for the click to land at impact.

Need this math wired into a real system? We do that for a living.

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