How to use
- 1
Enter a frequency or use the slider.
- 2
Keep volume low and press Play.
- 3
Try the sweep.
When to use it
Speaker range
Run the sweep.
Tuning reference
Play 440 Hz.
Science class
Compare waveforms.
Good to know
- Start quiet.
- 440 Hz is concert A.
- Speakers cannot play every frequency.
FAQ
Range?
1 Hz to 22 kHz.
Saved?
No.
Phones?
Yes.