Speaker & Audio Tools

Play low-frequency water ejection tones (165Hz pulsed sweep) to help dislodge trapped moisture from phone and smartwatch speaker grilles.

Play acoustic frequency sweeps and vibration presets to check speaker clarity and loosen superficial dust particles around speaker meshes.

Diagnostic audio sound test for smartphones, tablets, laptops, and speakers. Test clarity, bass, treble, volume levels, and distortion.

Generate precise sine, square, triangle, and sawtooth audio frequencies from 20 Hz to 20,000 Hz in real time.

Generate and download genuine, customized MP3 test files locally in your browser. Choose frequencies, sweeps, waveforms, stereo channels, or water-ejection tones.

Test left and right stereo audio separation for phone speakers, desktop monitors, and sound systems with live visual channel meters.

Comprehensive headphone test tool. Check left/right channel separation, bass response, high frequencies, and wiring polarity.

Test your smartphone's front earpiece call speaker and follow safe troubleshooting steps to fix low in-call volume or muffled voices.

Test your mobile device's internal physical vibration motor and haptic feedback engine with pulse, heartbeat, and SOS patterns using the Web Vibration API.

Safe, expert step-by-step troubleshooting guide for muffled, quiet, crackling, or water-damaged phone speakers on iPhone and Android.

Test multichannel surround sound audio channels (FL, C, FR, RL, RR, LFE) to verify home theater and surround headphone configurations.