Hitachi DZ-BX31A Instruction Manual page 167

FINALIZE:
This process makes a DVD-RW/DVD-R disc recorded on this DVD video camera/recorder playable
on a DVD player, etc. that conforms to 8 cm DVD: No further recording can be made on a finalized
disc.
HOWLING:
This phenomenon occurs as follows: When the DVD video camera/recorder is connected to a device,
such as TV, the audio input to the microphone of DVD video camera/recorder is amplified and
output from the speakers of TV, and the signal is again input to the microphone: This is repeated to
form an endless loop of audio signal, and the signal is amplified up to the audio output amplitude
limit of the device. Howling can be prevented by changing the positional relationship between the
DVD video camera/recorder and TV, or by turning down the volume on TV.
INFRARED SENSOR:
This sensor is used to adjust the white balance.
LASER PICKUP BLOCK:
This block emits laser beam to a disc, and then collects the laser beam reflected from the disc to
convert it to an electric signal. The block consists of a laser, lens, receiving element, etc.
LINEAR PCM:
Audio recording format similar to Dolby Digital: However, linear PCM does not compress an audio
signal, but instead samples it and converts it to a digital signal to be recorded. Therefore, the amount
of data used is larger than that of Dolby Digital.
SCENE:
Video (movie): "One scene" refers to images recorded from one press of REC button until recording
is stopped by pressing the REC button again.
Photo (still): "One scene" refers to a single photo recording by pressing the PHOTO button.
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