Audio
Confirm each speaker channel, find the limits of your hearing and headphones, and make sure your microphone picks up clean sound.
- Speaker TestTest left and right speakers or headphones online. Play sounds on each channel to check stereo balance, swapped channels and a dead speaker. Open tool
- Microphone TestTest your microphone online with a live level meter, waveform and spectrum. Check input level, noise floor and device settings. Audio is never recorded or uploaded. Open tool
- Mic RecorderRecord your voice and play it back to hear how your microphone really sounds. Compare echo cancellation, noise suppression and auto gain. No upload. Open tool
- Frequency SweepPlay a frequency sweep from 20 Hz to 20 kHz to test speakers, headphones and your hearing range. Mark the lowest and highest frequency you can hear. Open tool
- Tone GeneratorFree online tone generator. Play a sine, square, triangle or sawtooth wave at any frequency from 1 Hz to 22 kHz, on the left, right or both channels. Open tool
- Surround Sound TestTest 5.1 and 7.1 surround speakers online. Play sound on each channel, including centre and subwoofer, to check placement and wiring. Open tool
- Hearing & Headphone TestFree online hearing and headphone frequency test. Tones from 250 Hz to 16 kHz rise slowly in each ear; press when you hear them to chart your thresholds. Open tool
Fix guides
- Microphone Not Working? Fix No Input, Too Quiet or Not DetectedFix a microphone that is not detected, picks up nothing or is too quiet in Windows, macOS, Chrome, Zoom and Discord. Step-by-step permission and input fixes.
- No Sound From One Speaker? Fix Left or Right AudioFix sound coming only from the left or right speaker or earbud. Check balance, mono audio, cables and drivers on Windows, macOS, iPhone and Android.
- Headphones Not Detected? Fix Wired and Bluetooth HeadphonesFix headphones that are not detected or have no sound on Windows, Mac, Android or iPhone. Output device, jack, Bluetooth pairing and driver fixes.
- Microphone Echo or Background Noise? How to Sound ClearStop microphone echo, hiss and background noise on calls. Record yourself, compare noise suppression and echo cancellation, and fix input levels and placement.