Generate sine, square, triangle, and sawtooth tones from 20 Hz to 20,000 Hz. Choose a preset, adjust the volume, and download a five-second WAV sample.
SINE WAVEFORM • AUDIBLE SPECTRUM
Create tones from 20 Hz to 20,000 Hz, compare four wave shapes, or use a 440 Hz reference when tuning an instrument. The WAV sample uses your selected frequency, wave shape, and volume.
Fast and easy from start to finish
Select your desired waveform and frequency preset, or use the slider for a custom frequency.
Press the large center button to start playing the tone continuously.
Adjust generator volume or click 'Download 5s WAV Sample Tone' to export an audio file.
What you can do with this tool
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.
Unlock batch scale, higher resolution, and expanded limits
Generate dual-frequency chords and binaural beats for acoustic testing.
Run automated 20 Hz to 20,000 Hz speaker frequency sweep diagnostics.
Output precision test tones for studio microphone calibration.
Everyday walkthroughs and starter ideas for Audio Frequency & Tone Generator
Compare sine and triangle tones at the same frequency and a low volume.
Generate a 440 Hz tone to tune an acoustic guitar.
File requirements, capabilities, and system limits
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.
Helpful definitions of features and parameters
The unit of frequency equal to one cycle per second, measuring sound pitch.
A smooth, continuous mathematical curve representing a single pure audio frequency with no added harmonics.
How creators, students, and professionals use Audio Frequency & Tone Generator
Comparing low and high tones or different wave shapes
Tuning acoustic instruments, guitars, and orchestral violins to concert pitch
Calibrating studio monitor sound systems and finding room resonance frequencies
Answers to common questions about Audio Frequency & Tone Generator
Yes. Download a five-second WAV sample using your selected frequency, wave shape, and volume.
440 Hz is the universal acoustic pitch standard (Concert A4) used worldwide by orchestras and musicians to tune instruments consistently.
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