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Soundbar / TV Audio System diagnostics

Test what the browser can see. Know when it cannot.

Use controlled audio and channel references on the source device and then isolate HDMI, eARC, optical or Bluetooth settings before replacing hardware.

Run these first

Relevant live checks

Left Right Speaker TestPlay left and right channel tones separately.
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Stereo Audio TestPlay stereo cues to verify channel separation.
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Stereo Phase TestPlay an out-of-phase stereo reference tone to help identify channel or wiring behavior by listening.
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Speaker Frequency Sweep TestPlay a user-controlled frequency sweep for speaker/headphone inspection.
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First diagnostic sequence

Do the high-signal checks before risky changes

  1. 1

    Confirm TV or source audio-output mode and selected connection

  2. 2

    Compare another source or input

  3. 3

    Use the soundbar maker's test and update guidance for persistent faults

What DeviceOK/browser can help check
  • Generate controlled stereo and frequency audio from the browser source
  • Help prove whether a source browser can output sound
What this browser page cannot prove
  • Read HDMI or eARC handshake state generically
  • Test individual soundbar amplifiers or drivers
  • Verify surround decoding from every TV or app