How to Set Whistle Hertz and Pitch

To change whistle pitch on onlinedogwhistle.com, select a frequency preset or adjust the setting in 100 Hz steps. Read the visible value before playback. A larger number means a higher frequency. Start with low system volume, keep the speaker away from ears, and stop if anyone seems uncomfortable.

Read hertz before choosing a setting

Hertz, written Hz, describes frequency. The frequency value tells you which tone the app is generating. For example, 8 kHz means 8,000 Hz. Moving from 4,000 to 8,000 Hz raises the frequency. It does not mean the speaker becomes twice as loud. Use the visible setting as your reference when comparing choices. Your impression of a sound is not a measurement of its output. Dogs also vary, so one frequency cannot be presented as the right choice for every dog.

Read kHz as thousands of hertz.
Check the displayed value after each change.
Treat pitch and loudness as different properties.

Compare presets with small adjustments

Choose one of the five presets to move directly to a listed frequency. Then use the coarse controls for 100 Hz changes where the current range permits them. For a simple comparison, stop playback, change one setting, and read the new value before starting again. A preset name gives its requested frequency. If that request exceeds the device's current generation cap, the app limits it to the cap. Two high presets can therefore reach the same displayed value on a device with a lower ceiling. The number shown after selection is the useful reference.

Use a preset for a large frequency change.
Use 100 Hz steps for smaller changes.
Compare actual displayed values, including capped presets.

Keep pattern and gain separate from pitch

Steady, pulse, and warble are playback choices. Keep the same choice while comparing frequency settings so that you change one control at a time. The app applies a 10 ms cosine fade at sound boundaries. Its software gain starts at 10% and has a range from 0% to 25%. That percentage is an app setting, not a reading of sound pressure or the device's system volume. Raising gain does not prove that a speaker can reproduce a high frequency. Select a frequency preset or change the pitch setting in 100 Hz steps.

Leave the playback pattern unchanged during a pitch comparison.
Begin with the device volume low.
Do not raise volume merely because a high tone seems silent.

Use clear start and stop controls

Select hold mode when you want playback tied to holding the control. Select toggle mode when you want separate start and stop actions. When you are not typing, Space toggles playback and Escape stops it. Stop before moving the device near anyone or changing audio equipment. Playback also stops when the tab is hidden, during an interruption, or after a devicechange signal. Browser support for that signal is incomplete, so some audio route changes may go undetected. Use the stop control yourself before switching speakers or headphones.

Keep the playback page visible while using its controls.
Check that playback has stopped before changing equipment.
End the session if a person or dog appears uncomfortable.

Lower system volume and place the speaker away from ears.
Choose a preset, then read the actual frequency shown.
Keep gain and pattern fixed while making any 100 Hz adjustments.
Use hold or toggle for playback, then stop before changing another control.

Does a higher hertz value mean a louder whistle?

No. Hertz describes frequency. Software gain and system volume affect level, while the speaker's physical limits also affect what comes out.

Can I use silence to judge a high frequency?

No. Silence does not confirm successful output. The displayed value describes digital generation, and the speaker may not reproduce that frequency.

Does a dog's reaction identify the best pitch?

A reaction is an observation, not proof of a preferred setting or a training result. The app does not promise a response at any frequency.

Online Dog Whistle and Whistle Tone Generator