Compatibility Of The Dvcam/Dv Format - Sony HVR-A1J Service Manual

Compatibility of the
DVCAM/DV formats
The DVCAM format was developed as a
more reliable and higher-end format than
the consumer DV format. Explained here
are the differences, compatibility, and
limitations on editing for the DVCAM and
DV formats.
Differences between the DVCAM and
DV formats
Specification DVCAM
TRACK 15 µm
Pitch
Audio 12 bit:32 kHz
sampling 16 bit:48 kHz
frequency
Audio Lock mode
recording
mode*
Time code Drop frame
system or
Non-drop
frame
system
(SMPTE
time code)
* There are 2 modes for audio recording, lock
mode and unlock mode. In lock mode, the
sampling frequencies of audio and video are
synchronized. In unlock mode, which the
consumer DV format adopts, the 2 sampling
frequencies are independent. Therefore,
lock mode is more effective than unlock
mode in digital processing and smooth
transition during audio editing.
Mini DVCAM and mini DV cassettes
The recording format of the picture is
defined according to the recorder's format
as described below.
Recorder's
format
DVCAM
DV
DV
10 µm
• This camcorder complies with the DVCAM
12 bit:32 kHz
16 bit:48 kHz
44.1 kHz
48 kHz
Unlock
• The recording time of mini DV cassettes is 1/3
mode
Drop frame
Compatibility on playback
System only
Tape
DV
formatted
DVCAM
formatted
Cassette's
format
DVCAM
DV
DVCAM
DV
format.
Though mini DV cassettes can be used for
recording, we recommend you use mini
DVCAM cassettes to get the most out of the
high reliability of the DVCAM format.
shorter than that indicated on mini DV cassettes
when recorded in the DVCAM format.
On DV video
equipment
Can be
playback
Can be
played back
on some
equipment
Recording
format
DVCAM
DV
On DVCAM
video
equipment
Can be
played back
only when
recorded in
SP mode
Can be
playback
105
Continued 