HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM USING 6,35 MM MAGNETIC TAPE - FORMAT D-7 - PART 1: VTR SPECIFICATIONS
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Abbreviations and acronyms
4 Environment and test conditions
4.1 Environment
4.2 Reference tape
4.3 Calibration tapes
5 Tap
5.1 Base
5.2 Width
5.3 Width fluctuation
5.4 Reference edge straightness
5.5 Tape thickness
5.6 Transmissivity
5.7 Offset yield strength
5.8 Magnetic coating
5.9 Coating coercivity
6 Helical recordings
6.1 Tape speed
6.2 Sectors
6.3 Record locations and dimensions
6.4 Helical track record tolerance zones
6.5 Relative positions of recorded information
6.6 Gap azimuth
7 Programme track data
7.1 General
7.2 Insert and track information (ITI) sector
7.3 Audio sector
7.4 Video sector
7.5 Subcode sector
7.6 Edit gap
8 Audio processing
8.1 General
8.2 Encoding mode
8.3 Audio shuffling
8.4 Audio auxiliary data (AAUX)
8.5 Error correction code addition
9 Video processing
9.1 General
9.2 Compressed macro block and data-sync block
9.3 Video auxiliary data (VAUX)
9.4 Error correction code addition
10 Subcode processing
10.1 General
10.2 Subcode data
10.3 Error correction code addition
11 Longitudinal tracks
11.1 Control track
11.2 Cue track
Annex A (normative) Tape tension
Annex B (normative) Track pattern during insert editing
Annex C (normative) Cross-tape track measurement technique
Annex D (normative) Frequency characteristics of F[0] track
Annex E (informative) Relationship between tape length and
recording time
Annex F (informative) Block diagram of D-7 recorder
Bibliography
Specifies the content, format and recording method of the data blocks containing video, audio, and associated data which form the helical records on 6,35 mm tape contained in cassettes as specified in SMPTE 307M.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 100 |
