Play a quiet test tone through the left, right or both browser output channels.
Ready. Start explicitly to begin.
Start at low system volume. Choose a channel, then Play. Frequency, signal level and channel changes apply live. Playback stops after 30 seconds.
A sine tone plays only after Play. Start with low device volume. Left/right labels describe browser channels; system routing, mono accessibility settings or speaker wiring may alter what you hear. This is not a hearing test, SPL calibration or hardware certification. Tone frequency is 100–1000 Hz and signal level 0–25%, default 5%. A 30-second limit, Stop and hidden-tab cleanup release audio.
Tone is off.
Reports contain the observations currently shown, not an automatic hardware health verdict. No report is uploaded or saved automatically.
These tools run locally and do not upload your device observations, camera video, microphone input or interaction events. There are no accounts or stored test histories. Camera and microphone access stays under browser permission controls.
A sine tone plays only after Play. Start with low device volume. Left/right labels describe browser channels; system routing, mono accessibility settings or speaker wiring may alter what you hear. This is not a hearing test, SPL calibration or hardware certification. Tone frequency is 100–1000 Hz and signal level 0–25%, default 5%. A 30-second limit, Stop and hidden-tab cleanup release audio.
No. The browser exposes a limited set of events and reported settings. Inspect or listen to the actual result and compare with other applications if needed. Missing browser events or unavailable features do not prove a hardware failure.
Active input capture, audio playback and camera/microphone tracks are released on Stop, hidden tab, workspace switching and page exit. Pending permission results are ignored and late tracks stopped. Reports download only when explicitly chosen.
