Frequency Sweep Generator | 20Hz to 20kHz Sweep
Sweep from 20Hz to 20kHz for speaker, headphone and hearing range testing. Custom range and loop support.
- #audio
- #test
Sweep between frequencies for speaker, headphone and hearing range testing.
Frequency Range
Sweep Duration
10s
Loop
Stereo
Safety Notice
This tool is not a medical device and is not intended to diagnose, treat, or prevent any disease. Start at a low volume to protect your hearing and stop immediately if you feel discomfort.
Related tools
Tools in the same group or category
Speaker Test
Test left, right, bass, mid and treble speakers with reference tones. Free online speaker test.
Stereo Test
Verify left/right channels, center balance, alternating output and stereo pan sweep online.
Tone Generator
Generate frequencies from 20Hz to 20kHz online. Includes 100Hz Research Mode, audio test tones, speaker testing, timer and stereo output.
Metronome
Set BPM and time signature for free practice. Runs in your browser with Web Audio API — no uploads.
Guitar Tuner
Detect guitar string pitch in real time with your microphone and tune accurately. Free online guitar tuner.
Launchpad
Play kick, snare, hi-hat and more on a 4×4 drum pad grid. Free online launchpad with keyboard mapping and volume control.
Frequently asked questions
What is a frequency sweep?
A tone that moves continuously from a start frequency to an end frequency over a set duration.
Can I customize the range?
Yes. Set custom start and end frequencies between 20Hz and 20kHz.
What is it used for?
Speaker testing, headphone testing, and checking your audible frequency range.