Pure Frequencies at Your Fingertips

Need a precise frequency for calibration, testing, or experiments? Our Audio Tone Generator creates pure tones from 20Hz to 20kHz—the full range of human hearing. Test your speakers for dead spots, tune musical instruments, conduct hearing tests, or use it for meditation/focus sounds. Adjust Hz precisely and hear the difference between bass rumbles and piercing high frequencies!

Waveform Playground

Not all sounds are created equal! This generator offers multiple waveforms: Sine waves (smooth, pure audio), Square waves (retro, video-game style), Sawtooth waves (bright, buzzy), and Triangle waves (mellow, flute-like). Each has distinct harmonic properties. Scientists use sine waves for testing; musicians prefer squares and saws for synthesizer sounds.

Musical Standard: 440Hz is the international standard for "A4" (the A above middle C). Orchestras tune to this reference, though some prefer 442Hz or 432Hz for different tonal colors!

Audio Tone Generator