Canon EOS 5D Mark IV L-series Zoom Lens Kit Owner's Manual

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3
 Setting the Sound Recording
364
 
If you use the Wi-Fi (wireless communication) function with an external 
microphone, the sound noise may be recorded. During sound recording, 
using the wireless communication function is not recommended.
 
When connecting an external microphone or headphones to the camera, 
be sure to insert the plug all the way in.
 
The camera’s built-in microphone will also record the operation sound 
and mechanical sound of the camera during shooting. Use the 
Directional Stereo Microphone DM-E1 (sold separately) to reduce these 
sounds in the movie.
 
Do not connect anything other than an external microphone to the 
camera’s external microphone IN terminal.
 
When using headphones for audio, noise reduction will not be applied to 
the headphone output. Because of this, what you hear will differ from the 
actual audio recorded with the movie.
 
When listening to the sound with headphones, do not change the 
[Sound recording] settings. Doing so may cause a sudden increase in 
the sound level and hurt your ears.
 
In the <A> mode, [Sound recording] can be set to [On] or [Off]. If [On
is set, the sound-recording level will be adjusted automatically (same as 
with [Auto]), but the wind filter function will not take effect.
 
When the camera is connected to a TV set with an HDMI cable, the 
sound will also be output (except when [Sound rec.: Disable] is set).
 
The sound volume balance between L (left) and R (right) cannot be 
adjusted.
 
Audio is recorded at a 48 kHz/16-bit sampling rate.