SMPTE ST 12-1:2014

SMPTE ST 12-1:2014

Time and Control Code

187,00 €

Détails

This Standard specifies a time and control code for use in television and accompanying audio systems operating at nominal rates1 of 60, 59.94, 50, 48, 47.95, 30, 29.97, 25, 24, and 23.98 frames per second. This standard defines a time address, binary groups, and flag bit structure. The standard also defines a binary group flag assignment, a linear time code transport, and a vertical interval time code transport.

This standard defines primary data transport structures for Linear Time Code (LTC) and Vertical Interval Time Code (VITC). This standard defines the LTC modulation and timing for all video formats. This standard also defines the VITC modulation and location for 525/59.94 and 625/50 analog composite and component systems only.

Note: The digital representation of analog VITC (D-VITC) is specified in SMPTE ST 266 and is defined for 525/59.94 and 625/50 digital component systems only. High Definition formats, such as those documented in SMPTE ST 2048-2, SMPTE ST 274, and SMPTE ST 296, use Ancillary Time Code (ATC) as specified in SMPTE ST 12-2 (formerly SMPTE RP 188) for transport of time code in the digital video data stream. For future implementations of time code for digital Standard Definition formats, the use of ATC rather than D-VITC is encouraged.

Informations supplémentaires

Auteur Society of Motion Picture and Television Engineers
Edité par SMPTE
Type de document Norme
Thème /subgroups/31880
Nombre de pages 41
Remplace SMPTE 12M-1-2008,SMPTE 12M-1999,SMPTE RP 164-1996,SMPTE RP 159-1995
Mot-clé SMPTE ST 12-1:2014