How to Use the Audio Tone & Frequency Generator
-
1
Select a Waveform: Sine (smooth pure tone), Square (harsh/rich), Sawtooth (buzzy), or Triangle.
-
2
Adjust Frequency slider or enter exact Hertz (e.g. 440 Hz for concert pitch A4).
-
3
Quick-select popular frequency presets: Sub-bass 60Hz, 440Hz Tuning, 1kHz Calibration, or 432Hz Healing.
-
4
Control volume gain and click "Play Tone" to start real-time acoustic synthesis.
Practical Example & Use Case
Common Real-World Scenario
Tuning musical instruments, testing headphone and subwoofer frequency responses, or checking room acoustic resonances.
Technical Notes & Limitations
Browser Engine Architecture
Synthesizes pure real-time mathematical sound waves directly using the browser Web Audio API oscillator.
Frequently Asked Questions
Is 440 Hz the international standard pitch?
Yes, ISO 16 specifies 440 Hz as the standard concert pitch tuning for musical note A above middle C (A4).