Speaker & Headphone Test
Check stereo placement, audition key frequencies and sweeps, generate tones or noise, and record what you actually heard.
Audio Settings
Direct output selection is unavailable here. Use your browser or operating-system audio settings.
Begin with your device volume low. A 20% digital setting cannot guarantee safe physical loudness.
Stereo Channel Test
Listen for true left, centered stereo and right output.
Play LEFT, BOTH or RIGHT to report whether it came from the correct speaker.
Listening Results
Frequency Test
Short sine tones through both channels.
Not hearing a high-frequency tone alone does not prove that an output device is defective.
Frequency Sweep
Logarithmic sweep from 20 Hz to the safe output limit, up to 20,000 Hz.
Tone Generator
Stereo Balance & Phase
Stereo Phase Test
Perception varies with speaker placement, room acoustics and headphones. This does not automatically detect reversed wiring.
Noise Generator
Locally generated five-second noise samples with controlled levels.
How to use Speaker & Headphone Test
- 1
Choose an output device where supported and set Master Volume to a comfortable low level.
- 2
Play LEFT, BOTH and RIGHT in Stereo Channel Test, then answer whether each sound came from the correct speaker.
- 3
Review the three Listening Results cards or repeat a channel to change your response.
- 4
Use Frequency Test, Frequency Sweep, Tone Generator, Balance & Phase or Noise Generator for targeted listening checks.
- 5
Press Stop All Sound whenever needed, and Reset to clear observations and restore defaults.
Frequently asked questions
About Speaker & Headphone Test
Stereo faults are easiest to spot when the expected channel is unambiguous. Separate left, centered and right signals let you confirm routing, while the listening cards preserve only answers you explicitly provide. The automatic sequence plays all stages but never marks them successful on your behalf.
For broader listening checks, the workspace includes fixed tones, a logarithmic sweep, configurable oscillator waveforms, stereo balance, phase comparisons and controlled noise samples. Audio is synthesized locally through Web Audio. Because hearing, room acoustics and equipment differ, the results remain observations rather than certification.