Sound Test
Quick sound test for your audio output
Tap to verify your audio output
Free Online Sound Test
Eight specialized sound test tools. One platform. All built on the Web Audio API and running entirely in your browser.
Tone Generator
Generate pure sine, square, sawtooth, and triangle waves from 20Hz to 20kHz. Use it to sweep for speaker resonances, test hearing sensitivity, or tune instruments to a reference pitch.
Binaural Beats
Generate Delta, Theta, Alpha, Beta, and Gamma brain-wave frequencies for focus, meditation, and sleep. Each ear receives a different carrier frequency — the brain perceives the difference as a beat.
Hearing Test
Test your hearing range across 250Hz–8kHz. Find out whether you can hear high frequencies that younger ears detect easily.
100% Local & Private
No sign-up. No audio uploads. This sound tester runs entirely in your browser — your audio never leaves your device.
Why use GearTest?
A professional-grade sound tester and audio check suite that runs entirely in your browser — no installs, no accounts, no nonsense.
Web Audio API
Every tool is built directly on the browser's native Web Audio API. No Flash, no Java, no plugins — just fast, accurate, real-time audio analysis straight from your sound card.
Local processing
All audio processing happens locally in your browser. Your sound never leaves your device — we don't have servers that receive or store any audio data.
Real-Time Visualization
From FFT spectrum charts to live waveform displays, our tools give you instant visual feedback so you can see exactly what your audio equipment is doing.
How to test your audio
Run a complete audio check in under 2 minutes using these three steps.
Quick Sound Test
Start with a quick sound test on the homepage. Hit Play to verify your audio output is working. Switch between Left, Stereo, and Right to check channel balance instantly.
Speaker or Headphone Test
Navigate to the Speaker Test or Headphone Test. Run a full frequency sweep from 20Hz to 20kHz to identify any dead spots or distortion in your setup.
Advanced Tools
Dive deeper with the Tone Generator, Hearing Test, Bass Test, or Spectrum Analyzer — each tool targets a specific aspect of your audio performance.
Audio Glossary
Frequency Response
The range of frequencies a device can reproduce, measured in Hz. The human hearing range is roughly 20Hz–20kHz. A flat frequency response indicates a more accurate, neutral-sounding device.
Sample Rate
How many audio samples are captured per second (e.g., 44.1kHz = 44,100 samples/sec). Higher sample rates capture finer high-frequency detail. Standard audio uses 44.1kHz or 48kHz.
Binaural Beat
An auditory illusion created when each ear hears a slightly different frequency. The brain perceives the difference as a rhythmic beat, which can influence mental states like focus or relaxation.
FFT (Fast Fourier Transform)
The algorithm that converts a raw audio signal into its frequency components. The Spectrum Analyzer uses FFT to show you exactly which frequencies are present in real time.
Hz / kHz
Hertz (Hz) is the unit of frequency — how many cycles per second. Bass frequencies are in the 20–200Hz range; treble extends up to 20kHz. 1kHz = 1,000Hz.
Stereo Panning
The positioning of audio between the left and right channels. A signal panned hard left plays only in the left ear. Proper stereo balance ensures both channels play at equal volume.
Audio Troubleshooting Guide
Something not sounding right? Here's how to diagnose the most common audio problems.
No sound from speakers
Headphones sound unbalanced
Bass sounds weak or missing
Binaural beats not working
Who uses GearTest?
Gamers
Verify headset balance, test surround sound positioning, and confirm voice chat audio quality before competitive play.
Musicians & Podcasters
Check speaker frequency response, generate reference tones, and analyze audio spectrum before recording sessions.
Video Callers
Run a quick sound test and audio check before Zoom or Teams meetings. Never deal with "can you hear me?" moments again.
Wellness & Focus
Use binaural beats for meditation, study sessions, or sleep. Generate Delta waves for deep rest, Beta for concentration.
Frequently Asked Questions
Q.Are the test results accurate?
Yes — we use the browser's native AudioContext and OscillatorNode APIs which operate at full audio hardware precision. Accuracy ultimately depends on your sound card and speakers/headphones.
Q.Does anything get uploaded?
Nothing. All processing is done client-side in your browser's memory. We don't have any server infrastructure that receives audio data.
Q.Can I use it on mobile?
Yes, all tools work on modern mobile browsers (iOS Safari, Android Chrome). Headphone tests and binaural beats particularly benefit from mobile use with earphones.
Q.Do binaural beats actually work?
Research suggests they can influence brainwave patterns, though effects vary between individuals. They're safe to try and many users report improved focus or relaxation after consistent use.
Q.What's the difference between Speaker Test and Headphone Test?
Speaker Test is optimized for desktop/room speaker setups. Headphone Test includes 8D spatial audio and burn-in tools tailored for over-ear listening.
Q.How do I know if my hearing is normal?
The Hearing Test plays tones from 250Hz to 8kHz and records the quietest level you can hear at each frequency. Compare your threshold to the standard audiometric normal range shown in the results.
Quick tips for better audio
- • Volume levels: Set speaker/headphone volume to 60–70% before running frequency sweeps to protect your hearing.
- • Environment: Rooms with soft furnishings (carpets, curtains, sofas) absorb reflections and make it easier to hear frequency anomalies.
- • Positioning: For the most accurate stereo test, sit equidistant between your two speakers in a triangle formation.
- • Binaural beats: Use stereo headphones, not speakers. The effect only works when each ear receives a separate, isolated frequency.