TL;DR:
A good voice assistant shows its state with a signal you can see: idle, listening, thinking or speaking.
A pill you open yourself is a clear design, because the open pill on screen is the signal.
Your operating system also shows when the microphone is in use. Learn where to look.
You are working at a desk and a voice assistant is installed on the computer. A simple question comes up that is easy to ignore until it matters: is it listening to me right now? You should be able to answer that in one glance, without opening any settings.
This article covers the signals worth looking for, a walk-through of what each state looks like, and what to do when you cannot tell.
Four states and what each should look like
A voice assistant moves between a handful of states. A well-designed one makes each state look different, so you never have to guess.
State | What it is doing | What you should see |
|---|---|---|
Idle | Nothing is captured | No active indicator, or a clearly "off" look |
Listening | Microphone is open to your voice | A distinct signal that appears only now, such as a glow or a moving level meter |
Thinking | Working out an answer | A different signal from listening, so you know you can stop talking |
Speaking | Reading the answer aloud | A signal tied to the voice, and a way to interrupt |
The most important rule is that listening and thinking must not look alike. If both show the same pulse, you cannot tell whether the assistant is still hearing you.
Walk-through: the visual signals of a voice assistant
Imagine asking a question about a graph on your screen, using an assistant that opens a pill when you press its key.
Before: Nothing is on screen from the assistant. The operating system's microphone indicator is also off.
You press the key: The assistant's indicator changes to its listening look. Your operating system's microphone indicator turns on at the same moment.
You speak and close it: The listening signal ends when you press the key again or close the pill. The state changes to thinking.
It answers: The signal changes again to speaking. If you want to stop it, you press the key or say stop.
After: Both indicators return to off. If either stays on, something is wrong, and that is your cue to look closer.
The useful trick in this walk-through is that two separate indicators agree. One belongs to the assistant, and one belongs to your operating system. If they disagree, trust the operating system.
Why an open pill makes it obvious
With an always-open microphone, the question "is it listening?" has no physical answer. With a pill you open yourself, the answer is on your screen. If the pill is open, it is listening. If it is closed, it is not. There is nothing to remember and nothing to check.
Wake words and click-to-start toggles can also be fine, but they need more care. A wake word means a small part of the system has to listen constantly for that word. A toggle means you have to remember to switch it off.
Where your operating system helps
On a Mac, the menu bar shows an orange dot when an app is using the microphone, and System Settings lists which apps are allowed.
On Windows, a microphone icon appears in the system tray when an app is using it, and the privacy settings list which apps have access.
On Linux, the details depend on your desktop, but most show a microphone indicator and let you manage access in settings.
These indicators are drawn by the operating system, not the app, so an app cannot simply turn them off. That makes them a good independent check.
Tip: If you ever doubt an assistant, check the operating system's indicator rather than the app's. Two independent signals are worth more than one.
What this does not tell you
An indicator tells you when audio is being captured. It does not tell you what happens to the audio afterwards: where it goes, how long it is kept, or who can see it. For that, you need the product's privacy page. Indicators are step one, not the whole story.
Privacy and control
DuckyHelper only listens and looks while the pill is open and for that answer. When idle, it is not listening and not watching. The key is fn on a Mac and Ctrl+Shift+Space on Windows and Linux. The safety page covers the rest of its privacy rules.
Try it yourself
Run a five-minute check on any assistant you use. Find its listening signal, then find your operating system's microphone indicator. Trigger the assistant and see if they match. Stop it and see if both go quiet. Then open the privacy settings and look at which apps can use the microphone. Remove any you no longer use.
Frequently asked questions
Can an app hide the operating system's microphone indicator?
Not on modern systems. The indicator comes from the system itself, which is why it is a reliable check.
What if the assistant says it is idle but the indicator is on?
Treat the indicator as correct. Quit the app and check which app is using the microphone.
Is a wake word less private than a key-press pill?
It needs a small part of the system listening for the word, so there is more to trust. A pill you open yourself avoids that.
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