Sweep Generator (Frequency Sweep)
Lower your volume before pressing Play — a sweep covers all frequencies and can surprise you, or damage equipment under stress.
A sweep (or "chirp") is a signal that traverses a range of frequencies continuously. It's the ideal tool to measure frequency response of an audio system, identify problematic frequencies, or detect room resonance modes.
Hz
Hz
second(s) (max 60s)
WAV Export Options
Use cases
- Frequency response measurement of speakers or a room (log sweep + measurement mic).
- System check: ensure no frequency drops out in the audio chain.
- Resonance detection: a slow sweep highlights room modes.
- Sound design: high sweep used as a "riser" transition.
- Personal hearing test: find the highest frequency you can still hear.
FAQ
Linear or logarithmic — which one?
Logarithmic is recommended for frequency-response measurement (human hearing is log). Linear is useful for specific analyses or short sweeps.
How long should a sweep be?
For clean response measurement, 3 to 10 seconds is a good balance. Longer = more precise (in noisy environments), shorter = quick test.
Why is the spectrogram log instead of linear?
Human hearing is logarithmic: a frequency-linear sweep feels like it rushes through bass and creeps through treble. The log axis matches our perception.
Up or down sweep?
For measurement: up (limits noise tail at the end). For hearing test: down (the high → low transition is more audible).
♥ - Joseph SARDIN - Founder of BigSoundBank.com - About - Contact