Canon PowerShot S2IS User Manual page 71

Press the MENU button twice.
1/i¥I •
Even if the recording volume becomes too loud, it automatically
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adjusts to avoid distortion of loud sounds.
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•
Wind filter suppresses noise that occurs in locations with strong wind.
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However, unnatural sound can result when used to record in locations
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with no wind.
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Select a movie in the
Playback mode and
press the SET button.
Use the
~
or
~
button
on the omni selector to select one
of the following operations, then
press the SET button.