Audio Test Tones

Audio Test Tones are for the the experts among our readers. These tones are best used in conjunction with external devices, such as a sound level meter or an audio spectrum analyzer. These test tones will help you testing your audio equipment, loudspeakers, headphones, and room acoustics. Some of them can even be used during hearing therapies.

Pure (Sine) Tones

• Full Sine Sweep (20-20,000 Hz)
• Low End Sine Sweep (20-200 Hz)
• Perceptual Sine Sweep (20-20,000 Hz)
• Sine Bursts (20-200 Hz)

Distortion

• Total Harmonic Distortion NEW
• Intermodulation Distortion (IMD) Test Tone

Noises

• White Noise
• Pink Noise
• Brown (Red) Noise
• Blue (Azure) Noise
• Violet (Purple) Noise
• Grey (Perceptual) Noise

Impulse

• Impulse Tone

Dynamic

• Dynamic Test Noises

Higher Sample Rates (up to 192 kHz)

• High Definition Audio Tests

Others

• Brown Note
• Shepard Tone Illusion

Warning

Loud sounds can cause equipment/hearing damage with even a single, brief exposure. Always turn your audio system level down to a reasonable level, before playing our sound files.

Help Me Help You!

Is AudioCheck free? Not for me. Your support keeps this site running. Any donation will be rewarded with • uncompressed .wav file download for every test (a download arrow will appear next to each sound icon) • increased durations and sample rates up to 192 kHz in the Tone Gen section • and, best of all, the removal of these pesky payment buttons below 😜

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