MotionBuilder recognizes all audio hardware connected to the computer and displays it in the Audio folder. 
To connect an audio device:
- Select your audio device in the Scene browser Audio folder. 
 
- Activate the Online option to start communication with the Audio device when you are ready to start recording. 
Once Online is activated, the audio input displays in the Record area. 
  
- Test the levels and settings before you click Record. 
Note: Activating Online does not start the recording process, it simply makes MotionBuilder open the connection to the selected audio hardware. 
  
To set a new audio device:
- If you have installed new audio hardware, reset your default audio device using the audio settings in your computer. 
 
- Restart MotionBuilder. 
 
- Choose the audio device that is selected as the default device on your computer with the Audio settings Destination menu.