Canon EOS-1D C - Manual (Page 40)

40
3 Setting the Sound Recording
Using the microphone
The built-in microphone records monaural sound. Stereo sound
recording is possible by connecting an external stereo microphone
(commercially-available) equipped with a miniature stereo plug (3.5
mm) to the camera’s external microphone IN terminal (p.13). When
an external microphone is connected, sound recording will switch
automatically to the external microphone.
Line input
Stereo sound from a sound mixer, etc., can be directly input to the
camera. With a mini plug (3.5mm dia.) connected to the Line input
terminal (p.13), the sound will be recorded to the movie in stereo.
The standard input level is -8 dBV. Adjust the sound-recording level
to suit the Line output level.
The sound volume balance between L (left) and R (right) cannot be
adjusted.
The camera’s built-in microphone will also pick up camera operation
noise. Using a commercially-available external microphone can prevent
(or reduce) these noises from being recorded.
When using Line input, an audio signal of up to +6 dBV can be input, but
the distortion ratio may increase if the signal exceeds the standard input
level (-8 dBV). It is recommended to shoot a few test movies before the
actual shooting.
For Line input, be sure to set [Sound rec.] to [Line input]. If you try to
use Line input without setting [Line input] first, it may cause a
malfunction.
When [Line input] is set, the sound will not be recorded with the built-in
microphone. Also, [Wind filter] cannot be set (disabled).
Do not switch between [Manual] and [Line input] while listening with
headphones. It can hurt your ears.
Both L and R record audio at a 48 kHz/16-bit sampling rate.
If [z5: Silent Control] is set to [Enable h] (p.42), you can adjust the
sound-recording level with the <
h > touch pad to reduce the operation
noise during movie shooting.