Generate

Frequency Sweep

A continuous sweep with a frequency counter, the fastest way to find resonances, rattles and dead spots.

ConsoleIdle
Current frequency

20Hz

20 Hz → 20000 Hz over 20s

Channel
Waveform
01

Set the start and end of the sweep.

02

Press start and listen through it.

03

Note any frequency where things go wrong.

FAQ

Frequency Sweep questions

How do I use the Frequency Sweep?
Set the start and end of the sweep. Press start and listen through it. Note any frequency where things go wrong.
Is the Frequency Sweep free?
Yes. Every SpeakerTonic tool is free to use, with no account, no install and no limit on how often you run it.
What frequency range does it cover?
It sweeps from 20 Hz to 20 kHz, taking about 20 seconds per pass.
Can this damage my speakers or headphones?
Played at a sensible level it is safe. Start quiet and raise the volume gradually — sustained tones at maximum volume can stress any driver.
Does it work on a phone?
Yes. Frequency Sweep runs in any modern mobile or desktop browser — nothing to install.