Kodak DCS 410 - Manual (Page 171)

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 Reference — Camera G 7-29
PCMCIA card where it is saved as a sound file. As a result, the card may
contain an intermingling of image and sound files.
The camera alone cannot play the recorded sound; instead, a computer is
needed to access and play the sound files.
How to Record Sound
To record sound, make sure that a PCMCIA card is in the camera back,
then turn on and wake the camera (or operate while connected to the AC
battery charger/adapter or to a computer that is on), and hold the camera
back approximately six inches (15 cm) from your mouth, press and hold
the record button, speak into the microphone, and when finished, release
the record button. The center dot of the disk icon on the camera back
LCD comes on when sound is being recorded.
Recording
If the shutter release is pressed while the record button is down, audio
recording stops until the image has been recorded. If the record button is
still down, the camera begins to record sound again.
For simplicity there are no controls other than the record button; there is
no volume control, and no way to set the recording level.
Sound will not be recorded while shooting an image.