While Google Assistant more often than not gives us what we're asking for, there is still room for improvement in terms of accuracy. Google previously let us customize how sensitive we want the hotword to be on our smart displays and speakers. But now they're using federated learning with a new "Help improve Assistant" option to teach the system to avoid misactivations and misses. This lets you save audio recordings on your device to teach the speech technologies used for Google Assistant. As per 9 to 5 Google, this new option is turned off by default but when you go to your Google Assistant settings or your Google app's general preference, you'll see something called "Help improve Assistant" that you can turn on.