Canon EOS 60D Instruction Manual page 184

3 Menu Function Settings
[o] Menu
Sound recording
Level meter
[Sound rec.] options
[Auto] : The sound recording level will be adjusted
[Manual] : For advanced users. You can adjust the sound
[Disable] : Sound will not be recorded.
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Normally, the built-in microphone will
record monaural sound. Stereo sound
recording is possible by connecting an
external microphone equipped with a
stereo mini plug (3.5mm dia.) to the
camera's external microphone IN
terminal (p.16). When an external
microphone is connected, sound
recording will switch automatically to the
external microphone.
automatically. Auto level control will operate
automatically in response to the sound level.
recording level to one of 64 levels.
Select [Rec. level] and look at the level meter while
turning the <5> dial to adjust the sound recording
level. While looking at the peak hold indicator
(Approx. 3 sec.), adjust so that the level meter
sometimes lights up the "12" (-12 dB) mark on the
right for the loudest sounds. If it exceeds "0," the
sound will be distorted.