Sony 1080i - Manual (Page 68)

68
Appendix
Appendix
Compatibility of HDV, DVCAM, and DV Formats
The HDV format is a HD VCR format based on the DV format of the globally widespread general consumer
digital VCR system. This format has the newly defined data recording specifications for HD signals compressed
by MPEG2. It applies the same cassette, tape speed, and track pitch as the DV format. The differences,
compatibility, and restrictions in editing of the HDV1080i, DVCAM, and DV formats are explained below.
Main differences between HDV1080i, DVCAM, and DV Formats
1) There are two modes for audio signal recording: Lock mode and Unlock mode. In the Lock mode, the sampling
frequencies of audio and video are synchronized. In the Unlock mode, adopted by the consumer DV format, the two
sampling frequencies are independent. The Lock mode maintains high compatibility with higher formats and offers better
digital processing and smooth transition than the Unlock mode when you edit audio.
2) This unit cannot record in DV format with 16 bit - 32 kHz or 44.1 kHz.
3) This unit has been upgraded with a function for switching between Lock mode and Unlock mode.
4) This unit has been upgraded with a function to enable DF/NDF setting for NTSC and user bit setting for NTSC and PAL.
Playback compatibility
The relationship between playback tape format and player is summarized in the table below.
1) You can play back for HDV 720/30p format, but you cannot output the video signals from HDV/DV jack.
10 µm
12 bit: 32 kHz
16 bit: 48 kHz, 44.1 kHz, 48 kHz 2)
Unlock mode 3)
Drop frame mode
(NTSC only)
No user bits 4)
Specification HDV1080i DVCAM DV (SP)
10 µm
16 bit: 48 kHz
Lock mode
Drop frame mode
(NTSC only)
No user bits 4)
15 µm
12 bit: 32 kHz
16 bit: 48 kHz
Lock mode
NTSC: SMPTE time code
(DF/NDF, including user bits)
PAL: EBU time code
(including user bits)
Track pitch
Audio sampling frequency
Audio recording mode 1)
Time code
Playback tape format DV format model DVCAM format model
HDV1080i format model
(This unit)
Playback is possible.
(Some equipment cannot
play a tape recorded in the
LP mode.)
Playback may be possible on
some models.
No playback is possible.
Only playback of a tape
recorded in SP mode is
possible. Some equipment can
play a tape recorded in the LP
mode.
Cassette compatibility
No playback is possible.
Only playback of a tape
recorded in SP mode is
possible. Some equipment can
play a tape recorded in the LP
mode. (This unit can play back
a DV-formatted tape in SP
mode only.)
Cassette compatibility
Cassette compatibility 1)
DV
DVCAM
HDV