Chapter 1
Overview
Chapter 1
Overview
9
Chapter
1
Overview
Features
The DSR-70A/70AP is a
1
/
4
-inch digital videocassette
recorder using the DVCAM
TM
digital recording format.
It uses a component video system, with separate
luminance and chrominance signals and digital
processing to realize a stable, high image quality.
This unit is lightweight and compact, with a color
liquid crystal display and speakers, making it easy to
carry, yet ideal for on-the-spot checking of recorded
material.
By combining two units, you can easily assemble a cut
editing system.
The unit supports the Sony-developed ClipLink
TM
function, improving operating efficiency when
combined with a Sony EditStation
TM
.
A range of optional interface boards is available, with
support for both digital and analog systems.
The following are the principal features of the unit.
DVCAM Format
DVCAM is a professional
1
/
4
-inch digital recording
format developed by Sony from the DV 4:1:1
component digital format for home use.
High image quality and high stability
The luminance and chrominance signals are encoded
separately, with a
1
/
5
compression, giving a stable high
quality video image.
Since this is a digital system, nth-generation copies
created by repeated dubbing show virtually no loss in
picture quality.
Wide track
The recording track width is 15 µm, 50% wider than
the 10 µm of the DV format. This ensures adequate
reliability for professional use.
PCM digital audio for high sound quality
The PCM encoding method yields a high audio
quality, with wide dynamic range and high signal-to-
noise ratio.
There are two recording modes: two-channel mode
(48-kHz sampling and 16-bit quantization), which
offers sound quality equivalent to the DAT (Digital
Audio Tape) format, or four-channel (32-kHz
sampling and 12-bit quantization).
