1 kHz Tone Generator
A free online tone generator producing a pure 1 kHz signal in your browser. Reference test tone. Pick a waveform, hit play, and adjust the volume slowly.
What is 1 kHz used for?
1 kHz is the universal reference tone for audio equipment. Most spec sheets cite signal-to-noise ratios and distortion measurements at 1 kHz.
For reference test tone, set the volume to roughly 30% before pressing play. 1 kHz can sound deceptively quiet at full volume — always start low to protect your speakers and ears.
How to use it
Press the play button on the preview above to hear 1 kHz immediately. To customize the waveform (sine, square, sawtooth, triangle), tweak the volume curve, or add a second tone for beat-frequency comparison, open the full tone generator. The closest musical pitch to 1 kHz is approximately B5 (+21¢).
FAQs
Why does 1 kHz sound different on different speakers?
Speaker frequency response varies dramatically. Small monitors and laptop speakers struggle below about 80 Hz; tweeters distort above 16 kHz on cheaper systems. If 1 kHz sounds quiet, distorted, or buzzy, your hardware is likely the limit — not the tone itself.
Is it safe to listen to 1 kHz?
At reasonable volumes, yes. Sustained exposure to any frequency at high volume can damage your hearing. Always start at 0 volume, ramp up slowly, and don't wear headphones at full volume on this page.
What's the closest musical note to 1 kHz?
1 kHz corresponds to approximately B5 (+21¢). For exact tuning, use the chromatic tuner.