2017

Table Of Contents
Timecode Source box Determines which type of timecode is obtained from the VTR device. Timecode VITC
& LTC is the default, and recommended option. You should only have to switch to Timecode VITC or
Timecode LTC if one of the timecode tracks is corrupted.
To obtain:Select:
Vertical interval timecode (VITC).Timecode VITC
Longitudinal timecode (LTC).Timecode LTC
Both types of timecode. At normal playback speed, Smoke obtains LTC, but switched
to VITC when the tape is rewinding, fast-forwarding, or otherwise moving at a non-
playback speed.
Timecode VITC & LTC
Input and Output Connection boxes These boxes determine the connection by which the video signal is
transferred. This box is automatically set to reflect the selected VTR.
In Serial 1 3G / Out serial 1 3G: The video signal is transferred through one SDI 3G link. This is the only
available option when you use a 3G VTR. The VTR Status field indicates any conversion that might
happen because of the sampling used, 4:2:2 (conversion YCbCr <-> RGB) or 4:4:4 (no conversion RGB
<-> RGB).
In serial Dual 444 / Out serial Dual 444: The video signal is transferred through dual SDI links; one video
field is sent through one SDI cable, the other field through the other cable.
In Serial 1 4:2:2 / Out serial 422: Traditional VTR, single-SDI connection.
Colour Space box Determines the YCrCb colour space conversion method. Headroom is only supported
when you connect the VTR to an AJA device.
To perform clip I/O with:Select:
A standard YCrCb-RGB conversion process that clips superblack and superwhite luma
(Y). Use this option for typical clip I/O processes with VTR devices.
YCrCb->RGB
A YCrCb-RGB conversion process that preserves superblack and superwhite colour in-
formation. Use this option when inputting or outputting greyscale mattes or other
clips where preserving extremes in the luma channel is required.
YCrCb->RGB + Headroom
This is available when using dual link for RGB input and output. Video black and white
levels on the SDI stream are mapped to black and white values in RGB on the
framestore.
Use this option in conjunction with 4:2:2 input and output connections to input and
output 4:4:4 video using dual-links (4:2:2 and 0:2:2).
No Conversion
Also available when using dual link for RGB input and output. This mode uses all levels
available and preserves all but a few RGB values.
Use this option with the 4:4:4 input and output connections to input clips from and
output clips to a Telecine.
No Conversion + Headroom
Clip Input/Output Using a VTR | 275