Che cos'è Speaker Tester?
A speaker tester helps you verify headphones, laptop speakers, or external monitors before a call or listening session. This free sound test tool plays sine and other waveforms at chosen frequencies, pans audio to the left or right channel, runs a frequency sweep from bass to treble, and offers a quick beep plus a left→right→both sequence for stereo checks. Adjust volume carefully (especially with headphones), confirm both channels work, and catch muted outputs or swapped wiring without installing software. All tones are generated locally with the Web Audio API — nothing is uploaded.
Come usare Speaker Tester
- Set volume low, then click Play tone or Beep.
- Try Left only and Right only (or run Left / Right test) to check each channel.
- Use presets or the frequency field to test bass, mid, and treble.
- Run Frequency sweep to hear a continuous range from low to high.
- If you hear nothing, unmute the OS, pick the correct output device, and raise volume gradually.
Casi d'uso comuni
- Checking laptop speakers or headphones before a meeting
- Verifying stereo left/right channels after reconnecting audio gear
- Quickly confirming an output device is not muted
Domande frequenti
- Why is there no sound?
- The system or tab may be muted, the wrong output device may be selected, or the browser blocked autoplay until you click Play. Click Play tone after checking volume.
- Can I test left and right speakers separately?
- Yes. Choose Left only or Right only, or use the Left / Right test sequence to hear each channel in turn.
- Is audio uploaded to a server?
- No. Tones are generated in your browser with the Web Audio API and never leave your device.
- Will this damage my headphones?
- Start at a low volume. Test tones can be piercing at high levels — raise volume gradually.
