Sony ILCE-7C Help Manual page 496

Help Guide
Interchangeable Lens Digital Camera
ILCE-7C
α7C
Wind Noise Reduct.
Sets whether or not to reduce wind noise by cutting the low-range sound of the input audio from the built-in microphone.
MENU → (Camera Settings2) → [Wind Noise Reduct.] → desired setting.
1
Menu item details
On:
Reduces wind noise.
Off:
Does not reduce wind noise.
Note
Setting this item to [On] where wind is not blowing sufficiently hard may cause normal sound to be recorded with too low volume.
When an external microphone (sold separately) is used, [Wind Noise Reduct.] does not function.
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