Compatibility Of The Dvcam And Dv Formats - Sony HVR-Z1J Service Manual

Compatibility of the
DVCAM and 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
Specifica- DVCAM
tion
15 µm
Track pitch
Audio sampling 12 bit: 32 kHz
frequency 16 bit: 48 kHz
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.
116
Additional Information
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
• This camcorder complies with the DVCAM 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.
• The recording time of mini DV cassettes is 1/3
DV
shorter than that indicated on mini DV cassettes
when recorded in the DVCAM format.
10 µm
Compatibility on playback
12 bit: 32 kHz
16 bit: 32 kHz,
Tape
44.1 kHz,
48 kHz
Unlock mode
DV-formatted
Drop frame
system only
DVCAM-
formatted
Compatibility on editing using DV jacks
When this camcorder is connected to other
digital video equipment using an i.LINK cable,
the recording format of edited tapes is defined
according to the source tape and the recorder's
format as described below. Playback or editing
using the edited tape may be limited depending
on dubbing operation. Start dubbing after
reading "Limitations on editing" (p. 117).
Source
tape
DV-
formatted
(SP mode
only)
Cassette's Recording
format format
DVCAM DVCAM
DV
DVCAM DV
DV
On DV video On DVCAM
equipment video
equipment
Can be played Can be played
back back only when
recorded in SP
mode
Can be played Can be played
back on some back
equipment
Player's Re-
format corder's
format
DVCAM DVCAM
DV
Record-
ing
format
1)
DVCAM
DV