The “OK Google” and “Hey Google” commands can be handy for hands-free tasks, but you might not want to use them. If you want your Android device to stop listening for these Google Assistant keywords, it’s easy to do.
If you have Google Nest/Home speakers in your home, it can be annoying to have your Android phone or tablet every time you speak into a speaker , or maybe you just don't want your phone recording your voice every time it thinks it hears the command.
Fortunately, it's very easy to disable "OK Google" and "Hey Google" detection on an Android device.
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First, open the Google Assistant app. You can simply tap the home screen icon, say “OK, Google,” or swipe up from the bottom left or right corner.
Now, tap the Snapshot icon in the bottom left corner. The user interface may look slightly different depending on your device.
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Then, tap your profile icon to open the Assistant Settings menu.
The setting we are looking for is “Voice Match”.
This page shows all of the Google Assistant-enabled devices that can detect your voice. At the top, you'll see a section titled "This Phone" (or tablet). Simply turn off the switch for "Hey Google.".
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A pop-up message will appear explaining that you can still use voice commands in some driving apps, like Google Maps. Tap “OK.”
You're done! Your Android phone or tablet will no longer wake up when you say "OK Google" or "Hey Google.".
Information source: howtogeek.com
