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Device Test Bench

AU · Device category

Speaker & Audio Tests

Play controlled tones to check channels, balance and browser audio output.

Reviewed by Last reviewed 2026-10-01

Direct answer

What these Speaker & Audio browser tests can tell you

Use deliberate low-volume playback to compare left, right and centered browser audio, basic output selection and short controlled tones. The user confirms what was heard; the browser does not listen to or grade the physical speaker output.

Useful starting points

  • Only one channel is audible or the channels seem reversed
  • Browser audio does not play through the expected output
  • A short tone or stereo-position check is needed

Evidence shown in the browser

  • User-started left, right and centered channel playback
  • Web Audio availability and stop controls
  • Output-selection capability where the browser supports it

Important limit

These tools cannot detect which physical speaker made a sound, calibrate equipment, assess hearing or identify a failed amplifier, cable or driver.

For a clearer comparison, repeat the same action, change one relevant condition at a time, and record the browser, operating-system family, date and exact visible result. Use the page title and canonical URL when sharing the observation; do not describe a browser result as hardware certification.

Read the testing methodology or review our source and correction standards.

Focused tests

Choose a Speaker & Audio test

Open the page that matches the observation you want to reproduce.

AU

Speaker Test

Play a short, low-volume tone through left, right or both channels after a deliberate click.

Open test →AU

Left Right Speaker Test

Verify that stereo left and right channels are routed in the expected direction.

Open test →AU

Headphone Left Right Test

Play distinct channel tones to check headphone stereo direction without claiming to detect whether headphones are connected.

Open test →AU

Stereo Sound Test

Move a controlled tone between left, center and right to check stereo imaging and channel balance.

Open test →AU

Audio Output Test

Check basic browser audio playback and show output-device selection only where setSinkId is supported.

Open test →AU

Tone Generator

Generate a user-controlled short sine tone for basic speaker checks with conservative frequency and volume limits.

Open test →

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