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Appendix 99 (GB)
Appendix
Compatibility of DVCAM and DV Format
The DVCAM format was developed as a more reliable and higher end
format than the consumer DV format. Here we explain the DVCAM and
DV formats: the differences, compatibility and limitations on editing.
Differences between DVCAM and DV format
1) There are two 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 two sampling
frequencies are independent. The lock mode maintains high compatibility with
the higher formats and is more effective than unlock mode in digital
processing and smooth transition during audio editing.
2) This unit cannot record in DV format with 16 bit – 32 kHz or 44.1 kHz.
DVCAM and DV cassettes
Both DVCAM and DV cassettes can be used on DVCAM or DV video
equipment. The recording format is defined according to recorder format
as described below.
• This unit can record in DV format. (SP mode only)
• This digital videocassette recorder complies with the DVCAM format.
Though DV cassettes can be used for recording, we recommend that you
use DVCAM cassettes. Particularly when you use a Mini-DV cassette
that is longer than 60 minutes, do not play back the tape repeatedly (i.e.,
when editing). Set STILL TIME to 1 MIN or 30 SEC, and FROM REC
P to STOP (See page 90 (GB)).
• If you use a DV cassette to record images in the DVCAM format, the
recording time will be reduced to 2/3 of the time indicated on the DV
cassette.
• If you use a DVCAM cassette to record images in the DV format (SP
mode), the recording time will be extended to 1.5 times the time
indicated on the DVCAM cassette.
Item
Track pitch
Audio sampling
frequency
Audio recording
mode
1)
Time code system
DVCAM
15 µm
12 bit: 32 kHz
16 bit: 48 kHz
2)
Lock mode
DSR-50; SMPTE time
code (DF/NDF/
including user bits)
DSR-50P; EBU time code
(including user bits)
DV
10 µm
12 bit: 32 kHz
16 bit: 32 kHz, 44.1 kHz, 48 kHz
2)
Unlock mode
Drop frame mode (DSR-50)
without user bits
Recorder format
DVCAM
(If the DVCAM/DV
switch of this unit is
set to DVCAM.)
DV
(If the DVCAM/DV
switch of this unit is
set to DV.)
Cassette format
DVCAM
DV
DVCAM
DV
Recording format
DVCAM
DV
Appendix