Frequency sweep generator

Generate an audio sweep between two frequencies — sine, square, sawtooth — as a downloadable WAV.

Sweep curve
Waveform

Synthesized in this browser — nothing is recorded or sent anywhere.

Start and end must differ and stay under Nyquist (22.05 kHz). Short fade-in/out edges prevent clicks. Square/sawtooth sweeps contain harmonics above the base frequency. For speaker testing use a modest level — full-scale high-frequency sweeps can stress tweeters.

How to use

  1. Set start/end frequency and duration.
  2. Pick the waveform and sweep curve.
  3. Generate and download the WAV.

What it supports

Start and end must differ and stay under Nyquist (22.05 kHz); up to 60 s. Short fades prevent clicks. Square/sawtooth contain harmonics above the base frequency. For speaker testing keep the level modest — full-scale high-frequency sweeps stress tweeters.

Related tools

Related guides