Before starting, remove any interference that might be blocking the Soundbar side-firing speakers. Any ambient noise or sounds that could disrupt the calibration needs to be out of the room. After completing the initial setup in Google Home app, select the Settings screen on the touch display of the product. Select "Speaker Setup", and then "Calibration". Follow the directions in the display to perform the calibration. A series of tone sweeps/chirps will play in all directions, and the calibration process will finish within approx. 30-40 seconds. Calibration is done! In case you are moving the soundbar you will need to calibrate the sound again.