Linear
A linear sweep changes by equal Hz steps over time. It is easy to follow when you want a simple, even pass from the start frequency to the end frequency.
Browser audio utility
Frequency Sweep Generator
Sweep upward or downward through a frequency range to listen for rattles, buzzes, and changes in a speaker or headphone setup.
Frequency sweep
Listen across a frequency range
Ready to sweep
Sweep frequency controls
20–20,000 Hz
20–20,000 Hz
Quick ranges
Start with your device volume low.
Turn your device volume down before Play. Digital level is separate from your computer, phone, interface, or speaker volume.
1–30 seconds
Choose how quickly pitch changes.
0–25%; can change during playback
Current frequency
Offline WAV uses the current sweep settings and does not play audio.
Choose the movement
Linear and logarithmic sweeps
Logarithmic
A logarithmic sweep changes by a steady ratio, giving low and high ranges a more balanced listening pass. Both curves can rise or fall, so reversing the two endpoints creates a downward sweep.
Use a sweep as a reference tone for audible rattles, buzzes, or resonances. It is a listening aid, not a frequency-response measurement or a diagnosis of physical hardware.
A short listening check
Use the sweep in three steps
Set a quiet starting level
Choose a range and keep the device volume low before pressing Play sweep.
Listen through the range
Notice changes, buzzes, or rattles as the current frequency moves from one endpoint to the other.
Repeat with one channel
Use Left or Right to compare a stereo setup, then stop if the signal becomes uncomfortable.
No sound? Check these first.
- Confirm the browser tab and system output are not muted.
- Check that the selected headphones or speakers are connected.
- Try Both, a sine waveform, and a low digital level.
- Some browsers require a direct Play sweep click to start audio.
Keep the levels separate
Digital level controls the signal generated by this page. It does not set operating-system volume, amplifier gain, or acoustic dB SPL, so the same setting can sound different on different devices.
Common questions
Frequency sweep FAQ
Should I use a linear or logarithmic curve?
Use linear for equal Hz steps. Use logarithmic when you want each frequency range to be represented more evenly by ratio.
Can a sweep prove that a speaker is healthy?
No. It can help you hear an obvious change or unwanted noise, but it does not measure frequency response or diagnose a speaker.
Does downloading a WAV play the sweep?
No. Download WAV renders the current settings offline and starts a file download without routing sound through your device.