7.1

Table Of Contents
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Chapter 5 High Definition
Timecode Systems
HDTV comes with a variety of frame rates (i.e. the number of frames played per sec-
ond of video). As a result, the previously manageable range of timecode systems
offered has grown slightly. The eleven different TC systems in Avid Liquid’s TC dis-
plays are identified by the separator between the positions (period, comma, semico-
lon, colon). Initially, this only indicates the number of images per second - for
example, how many frames are counted before the timecode display jumps forward
one second.
Note that all TC fields in Avid Liquid are always frames and never fields. The list below
specifies the last frame before the full second.
Frames/second (Hz) Used for TC display
23.98 HD
00:00.00,23
23.98 HD DropFrame
00.00.00,23
24 Film 00:00:00,23
25 PAL 00:00:00:24
29.97 NTSC 00:00:00.29
29.97 NTSC DropFrame 00.00:00.29
30 HD 00:00:00;29
50 HD 00:00.00:49
59.94 HD 00:00.00.59
59.94 HD DropFrame 00.00.00.59
60 HD 00:00.00;59
These TC formats appear, for example, in the timecode indicators for the Timeline, for the Master, Source
and Clip Viewers, for the Logging Tool and for Record to Tape.
There can be only one TC system with a specific frame rate on the same Timeline and in the same
Sequence (see the next section).
Timecode sys-
tems, e.g. for
LIVE Player
(Logging Tool)