Canon EOS R6 Mark II Mirrorless Camera with 24-105mm f/4-7.1 Lens - Manual (Page 913)

Audio Monitoring
You can choose the audio during movie recording that is used for headphone output. To
reduce noise in audio recording, configure [
Audio noise reduc. ] ( ).
1.
Select [Audio monitoring].
2.
Select an option.
Real-time audio (without NR)
Audio output without noise reduction.
Recorded audio (NR applied)
Audio output with noise reduction.
Caution
Selecting [ Recorded audio (NR applied) ] results in audio output that is slightly out
of sync with video. Audio in recorded movies is not delayed.
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