Question: How do I use the Noise Cancel function?
Press and hold the DISPLAY/MENU button for one second or longer while the file is flashing. The current Noise Cancel level will be displayed on the LCD.
Press DISPLAY/MENU again to choose a Noise Cancel level. The levels switch in the following rotation: OFF, LOW, HIGH. Select a new level within two seconds; otherwise the level originally displayed will be retained.
Verification Source: Olympus Website