Canon EOS R10 User Manual page 371

Audio Noise Reduction
When recording with the built-in microphone, this feature reduces mechanical lens sounds
caused by autofocusing, as well as white noise.
Disable
Disables audio noise reduction.
Enable
Enables audio noise reduction.
High
Reduces audio noise more than with [Enable].
Caution
Audio quality may be different when set to [Enable] than when set to [Disable].
Although [High] reduces audio noise more than with [Enable], this option may also
have a greater impact on audio quality.
Effectiveness of audio noise reduction varies by lens.
Reducing white noise may make some noise more noticeable.
Test recording in advance, because audio noise reduction effectiveness and
resulting changes in audio quality vary by shooting conditions.
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