Online Audio Frequency Tone Generator & High-Pitch Hearing Tester
Precision WebAudio synthesizer generating pure sine, square, triangle, and sawtooth acoustic waves from 20 Hz to 20,000 Hz with volume attenuation, binaural balance, and age-based high-frequency hearing tests.Documentation & FAQs ↓
Step-by-Step Instructions
4 Steps to CompletionSet your system volume to a comfortable 30% to protect your ears and speaker drivers.
Select your waveform (Sine is recommended for hearing checks and sub testing).
Use the slider or click quick frequency buttons (50Hz, 440Hz, 1kHz, 10kHz, 16kHz).
Click 'Start Tone' to synthesize real-time WebAudio oscillations.
Practical Use Cases & Real-World Scenarios
20Hz to 20kHz Continuous Sweep
Smooth linear and logarithmic frequency slider with 1Hz step adjustment across the entire human hearing spectrum.
4 Oscillator Waveforms
Toggle between pure Sine, harmonic Square, warm Triangle, and rich Sawtooth wave geometries.
Age Hearing Cutoff Benchmarks
One-click presets for hearing limits (19kHz under 20 yrs, 16kHz under 30 yrs, 14kHz under 40 yrs, 12kHz under 50 yrs).
Subwoofer Resonance Presets
Dedicated sub-bass testing frequencies (30Hz, 40Hz, 50Hz, 80Hz) to locate physical room rattles and sub crossover.
Frequently Asked Questions
What is the normal human hearing frequency range?↓
Why can't I hear tones above 15,000 Hz?↓
What is the difference between 440 Hz and 432 Hz?↓
Can high-frequency tones damage my speakers?↓
Is this audio generated locally in my browser?↓
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100% free, private in-browser utility with zero server uploads.