Advanced Tone & Sweep Generator
Whether you need to test the frequency response of your new studio monitors, find your personal hearing limits, tune a guitar, or eject water from your phone speaker, our pure sine wave generator is the ultimate utility.
How to Fix a Water-Damaged Speaker
If you accidentally dropped your smartphone in water, the liquid can get trapped inside the tiny speaker grills, causing audio to sound muffled or distorted. You can safely fix this without dismantling your phone using sound waves.
While playing a single 165 Hz continuous tone works, using our Sweep Generator is significantly more effective. Set the sweep to start at 100Hz and end at 250Hz over 5 seconds. Playing this sweep at maximum volume hits multiple resonant frequencies of your speaker mesh, violently shaking the water droplets loose. Keep the tone playing while gently tapping your phone downwards.
Tuning Physical Instruments
Forget hunting for exact Hz values. Use our built-in Musical Note Selector. Want to tune the A-string on your violin? Just select 'A4' from the dropdown and the generator will instantly produce a perfect 440Hz reference tone for you to tune by ear.
Test Your Hearing Limit
As humans age, the tiny hair cells inside our ears naturally degrade, causing us to lose the ability to hear high-pitch sounds. A healthy teenager can usually hear up to 20,000 Hz, while older adults may only hear up to 12,000 Hz. Slowly drag the slider up to find where your hearing stops!
Health & Safety Warning
Please exercise extreme caution when using this tool. Generating high-frequency tones (above 10,000 Hz) at high volumes can cause serious ear discomfort, tinnitus, or permanent hearing damage. Always start with your device's volume set very low before pressing play, and never use headphones at maximum volume.