How to Choose Between Hold and Toggle Whistle Controls

Choose hold when you want the whistle to end as soon as you release the control. Choose toggle when you want one activation to start sound and another to stop it. Both operate the whistle; neither is a timed drill. Before either mode, start with low system volume and keep the sound source away from ears.

Match the control to how you will stop

Start by deciding which physical action you want to end playback. With hold, release is the stopping action. Keep your finger or pointer on the control only while you intend sound to continue. With toggle, a completed activation starts playback without a continued press. You must activate it again or use a stop command. Stay at the screen while toggle is running. It is easy to confuse releasing a toggle button with stopping sound if you have just used hold. Check your selected mode before each start.

Pick hold for direct press and release operation.
Pick toggle when a separate stop action suits your use.
Stop playback before changing between the two modes.

Prepare volume, frequency, and pattern

Set system volume low before testing either control. The app's software gain is separate: it starts at 10% and is capped at 25%. That percentage does not describe the loudness reaching a listener. Select steady, pulse, or warble and read the visible frequency. The range begins at 440 Hz. Presets offer 4, 8, 12, 16, and 18 kHz, subject to the digital ceiling. Many small speakers cannot reproduce ultrasonic frequencies, so an inaudible setting is no reason to raise volume sharply. Stop if a person or dog seems uncomfortable.

Review the selected pattern before pressing play.
Use the displayed frequency to check the current setting.
Keep the device at a distance from ears throughout playback.

Practice the stop commands before other tasks

Try the stopping action with your attention on the app. Release a hold press, or activate toggle a second time. When you are not typing, Space switches playback state and Escape stops it. Those shortcuts do not apply while typing, such as during a lesson search. Leave the text field before relying on them. Browser audio playback can also depend on a user action, as described in MDN's browser audio guidance. If sound has not started, check the app controls and browser state before increasing either volume control.

Check where keyboard focus sits before using shortcuts.
Use Escape as a stop command outside text entry.
Confirm that playback has ended before moving to another task.

Handle interruptions and separate timed features

The app stops sound when its tab becomes hidden, when playback is interrupted, or when it receives a devicechange signal. That browser event has limited support. A change of output route may pass without a signal, so stop first when connecting or disconnecting audio hardware. After an interruption, return to the app and inspect its state before starting again. Hold and toggle do not create scheduled sequences. The three preset drills have their own fixed timings and share a total allowance of three runs per day, reset at UTC midnight.

Recall uses 8000 Hz for 0.8 seconds, with 3 second gaps, repeated three times.
Attention uses 12000 Hz for 0.3 seconds, a 1.5 second gap, then 1.2 seconds.
Settle uses 4000 Hz for 2 seconds.

Choose hold or toggle according to whether release or a second activation should end playback.
Set low system volume, review software gain, and check the frequency and pattern before starting.
Start once, then practice the matching stop action while the app remains visible.
End sound before changing tabs, connecting audio hardware, or leaving the device unattended.

Does toggle stop after four seconds?

Toggle is not the four second reaction burst. The reaction feature runs separately and then offers reacted or noReaction. Do not expect ordinary toggle playback to follow that duration.

Can I add a timer to hold or toggle?

There is no custom timer control. Use the manual stop actions for the whistle. The named preset drills provide fixed sequences, with three total drill runs available each UTC day.

Will changing headphones always stop the whistle?

No. The app stops when it receives a devicechange signal, but browsers do not report every route change reliably. Stop the whistle yourself before changing the audio connection, then check the controls afterward.

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