C*Pix SDC2000 Instruções de Operação descarregar pdf (Página 163)

SDC 2002

4.3. TK Config Menu

4-77

Operating Instructions - Rev. 1 / 6.2003

Remarks concerning Linear Time Code (LTC)

ILTC, compatible to the SMPTE 12M standard, is available at J41 LTC OUT Rack

3 from SDC 2001 operating software V4.10 onwards and will always be generated

in “non drop frame mode”.

Assignment of userbits

If a keycode reader is installed, the keycode will be mapped into the userbits.

Restrictions of LTC operation

 LTC transfer via TE 2101 Transfer Engine Package 101

The transfer of LTC via Transfer Engine 101 to a workstation (e.g. OS2 / SGI)

causes a fixed delay of one frame. Example: Spirit DataCine SDC 2001 sends

LTC 00:00:00:00, Transfer Engine reads 00:00:00:01.

Problem can be solved with LTC Delay in this submenu

 LTC synchronizing for SEPMAG players

Do not feed the audio signal of an externally connected Sepmag player, syn-

chronized with LTC output (J41 LTC OUT Rack 3) from the SDC 2001, through

the audio system of the SDC 2001 - Audio 1/2 In to Audio 1/2 Out - for a signal

mix of SDC 2000 audio and Sepmag audio.

In this case audio is delayed versus video, because it passes the film scanner

audio delay which is active for audio, coming from the audio head of the Data-

Cine SDC 2000.

A Sepmag player synchronized with the bi-phase signal (J25 SEPMAG

OUT Rack 2) from the SDC 2000 operates correct, audio / video are syn-

chronal.

Notes!

 Drop frame / Non drop frame mode

Drop-frame compensation for the 59.94 Hz standard is not supported.

SDC 2001 operates always in “non drop frame mode”.

That means, that for film speeds 30 or 24 fps and TV standard “59.94 Hz inter-

lace” always 30 / 24 time code values are generated.

 Counting mode for progressive standards

For all 59.94 / 60 Hz progressive standards one time code value is allocated

to two frames.

TIME CODETIME CODE

LTC IN

LTC OUT

J 41 A

J 41 B

Rack 3

1 2 ... 158 159 160 161 162 163 164 165 166 167 168 ... 365 366

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