You can set the LCF (Low Cut Filter) function to cut a low frequency to reduce the roaring noise from wind; therefore you can record a file more clearly.
PLAY/STOP・ENTER.

or
+ to select “ON” or “OFF,” and then press
PLAY/STOP・ENTER.
(stop) to exit the menu mode. You can select one of the menu items available.
ON:
The LCF function is activated.
OFF:
The LCF function is canceled.
(Initial setting)