You can record your own messages in the Mixer App.
- Start a new Mix project, select "+ Add Audio File" and you will get 4 options
- Select “Record Your Own,” and click the red button to start recording.
- Click the button again when you’re finished recording.
- Title and Review your recording and “SAVE” your file, or “TRY AGAIN.”
- After you save your file, it can be dragged from the Audio Files Panel into the Mixer Timeline.