Generate pure sine, square, and triangle waves from 20 Hz to 20,000 Hz for speaker calibration and clearing water droplets.
Sound is vibration across frequencies. Generating pure tones allows audio technicians to test speaker response, check room resonance, tune instruments, or produce the specific low-frequency oscillation used to shake trapped water droplets out of phone speakers.
Worked example: Eject trapped water droplets from a wet phone speaker
Input
Selecting the 165 Hz water ejection preset.
Expected result
A strong, low-frequency buzzing tone that vibrates the phone's physical speaker diaphragm to push water droplets out.
165 Hz creates the optimal physical resonance to dislodge surface-tension water droplets from speaker mesh holes without harming hardware.
Before you use the result
- Always start at a low volume before triggering tones to protect your hearing.
- Never play harsh high-frequency square waves at full volume on delicate tweeters.
- Stop immediately if you experience ear discomfort.
If the result is not what you expected
I cannot hear frequencies above 15,000 Hz.
Human high-frequency hearing naturally diminishes with age, and many laptop speakers physically cannot reproduce sounds above 16 kHz. This is completely normal.
Step-by-Step Walkthrough
Step 1
Select your desired waveform and frequency preset, or use the slider for a custom frequency.
Step 2
Press the large center button to start playing the tone continuously.
Step 3
Adjust generator volume or click 'Download 5s WAV Sample Tone' to export an audio file.
Pro Tip for Best Output Quality
Playing very high frequencies (above 15,000 Hz) at excessive volume through small laptop speakers can cause distortion and should be kept at moderate volume levels.
Key Capabilities & Features
Comprehensive waveform selector
Sine (pure), Triangle (warm), Square (digital), and Sawtooth (brass harmonics).
Frequency coverage from 20 Hz (deep sub-bass) up to 20,000 Hz (high acoustic limit).
Tone presets
440 Hz (Standard A4), 432 Hz (Alternative A4), 165 Hz (Low Tone), and 60 Hz (Bass).
Frequency micro-steppers for exact 1 Hz and 10 Hz tuning adjustments.
1-Click 5-second studio WAV sample tone download.
Recommended Creative Use Cases
Frequently Asked Questions
Ready to try Audio Frequency & Tone Generator?
Open Audio Frequency & Tone Generator and try the example from this guide. Check the tool page for supported formats, limits, and access requirements.