Translation in progress
This page will be translated soon. Please check back again shortly.
Ultrasonic Generator
Set ultrasonic-range frequencies up to 20 MHz and play a scaled monitor tone in the browser.
Everything runs in your browser. No audio is uploaded or recorded.
Read before playback
Common speakers, headphones, phones, and computers cannot reproduce most ultrasonic-range settings, especially MHz values. This tool also plays a monitor tone at 1/10000 of the selected frequency so playback is easier to notice. High-frequency playback or monitor playback may still create distortion, heat, discomfort, or equipment stress. Use this tool only at your own risk; OneDollarLab is not responsible for device damage, hearing discomfort, injuries, data loss, or other harm caused by use.
Status
Idle
kHz
2,000
MHz
2
Monitor tone (1/10000)
200 Hz
You can set 20,000 Hz to 20 MHz. Frequencies above normal browser audio range are not directly playable, so a 1/10000 monitor tone is also played.
Presets
What it does
This tool lets you set ultrasonic-range frequencies up to 20 MHz. Browser audio cannot directly reproduce MHz signals, so the tool also plays a scaled monitor tone at 1/10000 of the selected frequency.
How to use it
- Read the warning and acknowledge it before playback.
- Keep the volume low and choose a frequency or preset.
- Press Start to play the available high-frequency output and its 1/10000 monitor tone, then Stop when you are done.
Tips
- Many consumer devices cannot reproduce ultrasonic-range settings even if the browser accepts the value.
- The monitor tone is intentionally scaled down so you can tell that playback is active.
- Use sine wave first if you want the cleanest high-frequency test.
- Stop immediately if you notice distortion, discomfort, heat, or unusual device behavior.
FAQ
Can this generate 10 MHz ultrasound?
You can set 10 MHz as a target value, but ordinary browser audio cannot directly output a 10 MHz signal. The audible confirmation is the 1/10000 monitor tone.
Why do I need to accept the warning?
Because high-frequency playback may not be audible while still stressing equipment or causing discomfort through distortion.
Does this make health or pest-control claims?
No. It only attempts high-frequency playback and does not claim any medical, wellness, pest-control, or other effect.