The voice input feature lets apps access the car's microphone to gather audio input for purposes such as creating an in-app assistant.
How voice input works
- The user requests voice input (via the microphone icon in the action strip, in this case).
- An overlay appears, signaling that recording is in process.
- Users can stop the recording by dismissing the overlay, or they can stop talking, at which point the app should stop recording.
A voice input icon appears to inform the user that they can provide voice input.
For a sample flow showing this process, see Communicate with the app by voice.
Best practices
- Get permission first. Make sure the user has granted permission for your app to access the car's microphone (ideally before the drive starts).
- Provide an entry point. Give the user a way to start voice input, such as a microphone icon in the action strip. Then, wait for them to initiate the process.
- Brand the experience. When creating an in-app assistant, make clear that it's an assistant specific to your app.
- Stop when the user does. When the user is done talking, stop recording.