Compatibility Of Dvcam And Dv Format - Sony DVCAM DSR-25 Operating Instructions Manual

Compatibility of DVCAM and DV Format

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
Item DVCAM
15 µm
Track pitch
Audio sampling 12 bit: 32 kHz
16 bit: 48 kHz
frequency
Audio recording Lock mode
mode 1)
Time code
NTSC: SMPTE
system
time code (DF/
NDF, including
user bits)
PAL: EBU time
code (including
user bits)
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.
76
(GB) Appendix
Appendix
DV
10 µm
12 bit: 32 kHz
16 bit: 32 kHz,
2)
44.1 kHz, 48 kHz
Unlock mode
Drop frame mode
(NTSC) without user
bits
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.
Cassette type
Recorder format
DVCAM
DVCAM
(If REC MODE on
DV
the VTR SET menu
of this unit is set to
DVCAM.)
DV DVCAM
DV
(If REC MODE on
the VTR SET menu
of this unit is set to
DV SP.)
• 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 (See page 66
(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.
Recording format
DVCAM
DV