Compatibility Of Hdv, Dvcam, And Dv Formats - Sony HVR-M15E Operating Instructions Manual

Compatibility of HDV, DVCAM, and DV Formats

HDV format is an HD VCR format based on 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 DV format. The differences, compatibility, and restrictions
in editing of HDV1080i, DVCAM, and DV formats are explained below.
Main differences between HDV1080i, DVCAM, and DV Formats
(The unit and other equipment for professional use may be functionally extended. For details, see the notes below
the table.)
Specification
Track pitch
Audio sampling frequency
1)
Audio recording mode
Time code
1) There are two modes for audio signal recording: Lock mode and Unlock mode. In Lock mode, the sampling frequencies of
audio and video are synchronized. In Unlock mode, adopted by the consumer DV format, the two sampling frequencies are
independent. Lock mode maintains high compatibility with higher formats and offers better digital processing and smooth
transition than Unlock mode when you edit audio.
2) The unit cannot record in DV format with 16 bit: 32 kHz or 44.1 kHz.
3) The unit has been functionally extended with a function for switching between Lock mode and Unlock mode.
4) The unit has been functionally extended with a function to enable DF/NDF setting for 60i with HDV or DV (SP) format.
5) The unit does not have user bit settings. (There are some devices which you can adjust the user bit settings.)
68
Appendix
Appendix
HDV1080i DVCAM
10 µm 15 µm
16 bit: 48 kHz 12 bit: 32 kHz
16 bit: 48 kHz
Lock mode Lock mode
Drop frame mode NTSC: SMPTE time code
(60i only) 4) (DF/NDF, including user bits)
No user bits 5) PAL: EBU time code
(including user bits)
DV (SP)
10 µm
12 bit: 32 kHz
16 bit: 32 kHz, 44.1 kHz, 48 kHz
3)
Unlock mode
Drop frame mode
(NTSC only) 4)
No user bits 5)
5)
2)