Speaker test

Left. Right. Everywhere.

Independent left and right channel test, surround-ping for 5.1/7.1 setups (via a channel splitter in the Web Audio API), plus one-button bass and treble probes.

Stereo

Surround ping requires multi-channel output

Frequency probes

Volume 30%

Start low. Bass tests can damage small speakers at high volume.

Stereo L / R Surround 5.1 / 7.1 ping Bass / treble / sweep