Test Tone Generator
Generate pure sine, square, sawtooth, or triangle wave test tones at any frequency.
✨ Generated locally in your browser
Ready-to-Download Samples
Download pre-built sample files instantly. No configuration needed.
A4 Concert Pitch (440 Hz)
Standard tuning reference tone
Standard FrequenciesC4 Middle C (261 Hz)
Middle C reference tone
Standard Frequencies1 kHz Test Tone
Standard audio test frequency
Standard FrequenciesSquare Wave 440 Hz
Harsh, buzzy tone
Waveform TypesSawtooth Wave 440 Hz
Rich, bright tone
Waveform TypesTriangle Wave 440 Hz
Soft, mellow tone
Waveform TypesCreate Custom File
Configure your own file with custom settings and content
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Generate precise test tones for audio testing, speaker calibration, and equipment diagnostics. Create pure waveforms at any frequency from 20 Hz to 20 kHz.
What is a Test Tone?
A test tone is a pure audio signal generated at a specific frequency. Test tones are essential for calibrating audio equipment, testing speakers, checking hearing response, and tuning musical instruments. Our generator creates mathematically perfect waveforms with no distortion.
Why Use Our Test Tone Generator?
Generate any frequency from 20 Hz to 20 kHz with precision
Choose from 4 waveform types: sine, square, sawtooth, triangle
Adjustable duration from 0.5 seconds to 60 seconds
Professional sample rates up to 48 kHz
No installation required - runs entirely in your browser
Download as high-quality WAV files
Common Use Cases
Speaker Testing
Verify speaker frequency response across the audible range.
Audio Calibration
Calibrate audio equipment and set reference levels.
Hearing Tests
Test hearing response at different frequencies.
Music Production
Create reference tones for mixing and mastering.
Features
Pure waveform generation with zero distortion
Frequency range: 20 Hz to 20,000 Hz
Four waveform types for different testing needs
Adjustable volume and duration
Real-time audio preview with waveform display
Generated locally in your browser
How It Works
Configure
Customize your file settings using the form above
Preview
See your changes in real-time in the preview panel
Download
Download your file instantly - no signup required
Frequently Asked Questions
What is a test tone?
A test tone is a pure audio signal at a specific frequency, used for testing audio equipment, calibrating speakers, and checking hearing response.
Why is 440 Hz the standard?
440 Hz (A4) is the international standard for concert pitch, established in 1955. It serves as the reference frequency for tuning musical instruments.
What are the different waveform types?
Sine waves are pure tones. Square waves have a harsh, buzzy sound. Sawtooth waves are rich and bright. Triangle waves are soft and mellow.
What sample rate should I use?
44100 Hz (CD quality) is standard for most uses. 48000 Hz is used in professional audio and video production.